shifter help!!!!

right now i have a 350 with a truck 3 speed in my pontiac..i want to go to a 4 speed but i would like to keep my shifter in the same spot with out putting another hole in the floor or my new carpet or notching my seat. my shifter right now is the truck style where it mounts closer to the front of the tranny. i have a saganaw here i could use or my friend has a super t-10 for sale... but the shifter for themis on the back of the tranny virtually under my seat. is there a manufacturer that makes one that mounts like the 3 speed????:confused:

Do you think you could put aphoyo of the shifter setup on the site preferably a shot of the shifter side of the gearbox so I can figure out what your up against.