Question on starter for H1.

[brad barkis]

I have a 2000 H1 and it has been giving me trouble starting when the engine is warm. I took it to he hummer dealer and they told me it needed a new starter and both batterys. They wanted over $1,200 for a new starter, and the batterys in the truck are both 3 month old acdelco 750 cold cranking amp batterys. so i think they are trying to screw me. Does any one know if a stock chevy 6.5 starter will work in the H1? Or where i can get a good price on another hummer starter? Thanks.