I wouldn’t waste your time with the plastic drive train. I gave up on it. Just getting back into it after 6 months.
Is the metal driveline remix at http://www.thingiverse.com/thing:631901/ just not enough in your opinion?
I think I had mine all printed up and ready for the test drive. That lasted about 5 minutes if that. I probably repeated this same process about 3 or 4 times for the drive train to fail again and again. I gave up on it for a while and just now started researching the all metal drive train. I found the one that looks to be the most complete and have decided to give it a try.
@Oliver_Parlin let me know if you place the order, would be interested also