Your work is pretty impressive and should be into GTCE and not out of the box. (with the new dev it should be doable)
I dont know if you will maintain your code properly but if you want and if GTCE doesnt wants your code (in case you dont want to code anymore) I can merge your code into mine :).
Your work is pretty impressive and should be into GTCE and not out of the box. (with the new dev it should be doable) I dont know if you will maintain your code properly but if you want and if GTCE doesnt wants your code (in case you dont want to code anymore) I can merge your code into mine :).