Lol no worries just FYI I'm glad I converted mine dont get me wrong I still enjoy nitro but now there are no aches and pains that comes with nitro. Nitros can be a pain in the a$$ especially if not broke in properly. The motor mount you can get on ebay specifically made for the revo 3.3 thats...
I did the goolrc S3674 set up I'm happy with it but wished I went with a brushless sensored motor and esc if you want good quality go with a castle set up 1515 or 1717 motor its expensive but worth it
You will not need new trans but if you don't want to use the shifting servo for forward and reverse you will have to pull transmission and lock it there are videos on YouTube how to lock it. I just converted mine put 4s batteries in it and its stupid fast I didn't lock the trans so it still has...