cr250 hybrid?

[ECHILD]

i got a 87 cr250, i am thinking about building a hybrid out of...what frames should i think about using,is it gunna be worth it?

[Baxter]

2 choices
TRX 250r
or
TRx 400ex
anything else gets expensive.

[ECHILD]

i can get a 400ex chassie for 400 bux off craigslist.would there be alot of modifiy work on the frame or just motor mounts and radiator mounts..