Tranny slipping

[rocafella99]

Aright guys cars got 93 thousand miles and now when its not totally warmed up it slips going into OD or reverse but when its warmed up I dont have this problem, time for a rebuild? My neighbor who i bought it from says it had a rebuild before he got it which was like 11 thousand miles ago but who knows. If I do need a rebuild I think I'd like to swap to a Stick if anyone can tell me the avg price range unless theres stuff i should try to fix this auto
Thanks guys