700r4 shifter changing

I seen a nice set up from B&M on ebay , was thinking about going with it for my auto. I know it would look much much sweeter than the shitty stock set up in there..that's just a damn eye sore.

Anyone done this yet - How long would you estimate it to take ?

dont know how much the one is your lookin at but summit has them specifically for firebird or camaro and its the mega shifter for about 150 but i dont know if u would need any additional parts. but if u do it let me know cause its gonna be one of my next upgrades when i get my transpack put in