No extra price for my choice of motors I just want to play on parking lots in winter and maybe a soccer field in summer ..maybe some jumps but NOT trying to be a youtube hero just wanna have some fun and race my boys 3.3 revo, 28rr assoc, and a 2.5 traxxas..dad hates to lose

I know the guy and he is giving me a great deal money wise he just left engine choice up to me I think all the boys are in 44 50mph range so I want to hang if not beat them in a drag race