73-80 pick up, seat replacement?

[93FatBottom]

I put my deposit down on my 1980 K30 Single Cab long bed 4x4- on brand new 40's Only thing she needs is a 454 in between those frame fails (perhaps a 12 valve later down the road? I'm hoping to drive this to Texas next year when I go to move) Trucks in great shape, one dent in the entire truck, faded paint, decent interior. Heres my issue. I'm 6'10, 330 pounds. I've been scavenging the internet looking for a replacement seat idea. So far I've read of people using square tubing to make a home made seat frame and bolt an aftermarket seat in, but all the seats I find are bulky and put me too close to the steering wheel. I once had a 75 single cab that the previous owner put some aftermarket bench seat in, it was pressed further back against the cab back, though there was a roll bar installed preventing the seat from being back all the way, it was a comfortable fit, not perfect, but I could drive it for longer than an hour and not suffer. I know its possible to make this work, a friend of mine is an inch shorter than me and 60 pounds heavier and he was able to drive his 74 K10- with a 4 speed to boot! Does anyone have any idea, photos, examples/builds I could trouble you for? I'd greatly appreciate it!