Lites second hand are about 30-40 so no not frame and forks for 50 try 80-120 ish I'd say Unless the frame is realy in bad condition. But if you can get new then get it. Just ride the mission until all bits are bought for the T-Pro Or Just bang all the mission stuff on but maybe get some new cranks, BB and whatever is left spend on bits that are mission on the bike that you think need changing. I rode a mission at first and they are good for beginners and i thought mine was great, i ride t pro now and its a really nice bike to ride I'm sure whatever decision you make will be good.