Er, never seen that model before. I wouldn't buy one!
Get something branded.
If you want something to work on together, I would build one from scratch. Save up and buy the parts seperately, could be fun. Get like, a chassis, bulkheads, diffs, a-arms, shocks, shock towers, servo etc
I don't think it's the best idea to go into this together though, when one of you breaks something, or one is putting more money into it than the other it will create tension between you.