Convert web service configuration to code

I have a client for SOAP service in a console application, I need to move the service client to sharepoint 2010. I do not want to do config files deployment and other sharepoint-related stuff, so I decided to hardcode binding information, the only configurable option is URL. But I encountred some troubles doing this. I have a config:

    <system.serviceModel>
<bindings>
  <customBinding>
    <binding name="SI_PMProjectMaintain_SOUTBinding">
      <textMessageEncoding maxReadPoolSize="64" maxWritePoolSize="16"
        messageVersion="Soap11" writeEncoding="utf-8">
        <readerQuotas maxDepth="10000000" maxStringContentLength="10000000"
          maxArrayLength="67108864" maxBytesPerRead="65536" maxNameTableCharCount="100000" />
      </textMessageEncoding>
      <httpTransport authenticationScheme="Basic" bypassProxyOnLocal="false"
        hostNameComparisonMode="StrongWildcard" keepAliveEnabled="false"
        proxyAuthenticationScheme="Basic" realm="XISOAPApps" useDefaultWebProxy="true" />
    </binding>
  </customBinding>
</bindings>
<client>
  <endpoint address="http://url/XISOAPAdapter/MessageServlet?senderParty=&amp;senderService=Param1&amp;receiverParty=&amp;receiverService=&amp;interface=interface&amp;interfaceNamespace=url"
    binding="customBinding" bindingConfiguration="SI_PMProjectMaintain_SOUTBinding"
    contract="PmProjectMaintain.SI_PMProjectMaintain_SOUT" name="HTTP_Port" />
</client>

Also, I have a code:

    var service = new ServiceClient();
    service.ClientCredentials.Windows.ClientCredential = new NetworkCredential("user", "password");
    service.ClientCredentials.UserName.UserName = "user";
    service.ClientCredentials.UserName.Password = "password";

    var resp = service.Operation();
    Console.WriteLine(resp.Response);

It works as expected. Now I want to get rid of xml config and completly move it to code:

public class CustomHttpTransportBinding : CustomBinding
{
    public CustomHttpTransportBinding()
    {
    }

    public override BindingElementCollection CreateBindingElements()
    {
        var result = new BindingElementCollection();
        result.Add(new TextMessageEncodingBindingElement
        {
            MaxReadPoolSize = 64,
            MaxWritePoolSize = 16,
            MessageVersion = MessageVersion.Soap11,
            WriteEncoding = Encoding.UTF8,

            //ReaderQuotas = new System.Xml.XmlDictionaryReaderQuotas
            //{
            //    MaxDepth = 10000000,
            //    MaxStringContentLength = 10000000,
            //    MaxArrayLength = 67108864,
            //    MaxBytesPerRead = 65536,
            //    MaxNameTableCharCount = 100000
            //}
        });

        result.Add(new HttpTransportBindingElement
        {
            AuthenticationScheme = AuthenticationSchemes.Basic,
            BypassProxyOnLocal = false,
            HostNameComparisonMode = System.ServiceModel.HostNameComparisonMode.StrongWildcard,
            KeepAliveEnabled = false,
            ProxyAuthenticationScheme = AuthenticationSchemes.Basic,
            Realm = "XISOAPApps",
            UseDefaultWebProxy = true
        });

        return result;
    }
}

And I use it like this:

    var service = new ServiceClient(new CustomHttpTransportBinding(), new EndpointAddress(url));
    service.ClientCredentials.Windows.ClientCredential = new NetworkCredential("user", "password");
    service.ClientCredentials.UserName.UserName = "user";
    service.ClientCredentials.UserName.Password = "password";

    var resp = service.Operation();
    Console.WriteLine(resp.Response);

It reaches the server, but throws exception ("Server Error"), so I belive something wrong with my configuration. I can not specify the reader quotas also. I've tried loading configuration from string, but it is not worked for me, same error. Confi It seems that I can not convert custom bindings from XML to code in .net 3.5. Can somebody take a look on my code and confirm? Are there other ways to have a service client with custom binding in code?