1986 4speed to automatic swap question

[CBot]

OK i thought i would like the manual in my 86 c10 longbed. turns out this thing is loud obnoxious and nobody wants to service it. its not too fun to drive because it fights you back really hard. im an experienced standard trans driver loved my 5 speed 91 k1500. this thing doesnt like to be shifted quickly. In Wichita traffic sometime you gotta but with this trans i get no where fast. i imagine it would be awesome for towing but none of that i use this truck for. I know lokar makes a floor shifter for the th350 th400 and 700r4. does anyone know if i can utilize the stock hole in the floor with it? i have seen them on ebay pretty cheap. there is a local guy here that has stock of rebuilt th350s 400s and 700r4s the th350 and th400 are 450 a pop and the 700r4 650 a pop. heres some pics so you guys know the exact location of the shifter.