I am not sure , if DNN going to create a package with your all services and with other custom stuff and contain all these things than it is great

but after packging you got zip file with .DNN file which is xml base and having all details of your controls and files of your module

And in my case i use our cutom dll and we alter .DNN file for DLL and path in DNN file and also in zip after that DNN 'll place this dll in bin folder autom...

So just alter .DNN file and add custom path of your files and try. I know you are using Service which is not like DLL and we also 've to refernce service in diff manner

But try - May help you.

thanks