The decision is made

The 1,2, & 3 ratios for the 200 are nearly the same as a low gear 904. Should work out great for you. But 2500 at 70? Seems kind of high to me but I could be wrong, been daily driving trucks for too long I guess.

Well, right now it's 4000 rpm. I am going to try and stick in a taller tire as well.