Need gear ratio , tire and rear end ratio experts ! Green Rat Project

OP, Please, do not take my input as an attack on Your build, or Your choice of Parts... just my take on what I consider a shitpiece transmission. Had one in a 01 Dakota Sport, single cab, shortbed. 4.7 w/ NV 3500, 3.92 rear, fairly big tires. 1st gear, Brutal Fun As Heck Clutch Dumps from 4500 or More rpms. TIRE FRYING FUN!!!!!! power shift 2nd? Nope, ain't happening. Final drive in 5th would Roll that Truck out Hard, and still get decent mileage. The PLASTIC shifter house/ retainer was crap, broke one... the Factory PLASTIC clutch slave was a POS. We hot glued that **** back together 2x. IF You Have a Factory set up, to bleed the SOB, ya need to remove the Clutch Master, turn it UPSIDE DOWN and have a Brother pump it, by Hand! They Don't sell any parts for the Slave, it's a Complete, sealed assembly. But when Ya get a METAL ONE, IT has a Bleeder Valve! YAY! sorry to rant! Other than those issues, it was an OK transmission. Oh, and a FBBO member, an Aircraft Mechanic (Propwash) Great Guy Alert!!!! He rebuilt one, chained it to the floor, to pull the guts, as NO side cover... well, there is this Lil clip thing, and some other balls or a spring or some ****. When he went to put it together, they popped all over the shop. Think he was over it then. Just my humble opinion I hope you have better luck with yours