47-59 Seat question.

[R&B51]

I haven’t sat in many trucks besides a friend who has built an half dozen AD’s. He always uses the 88 -90’s Chevy bench one piece back but has fold down elbow rest/cup holder just right elbow of driver. He cuts 4” out bottom and back just to the passenger side of elbow rest, but requires new foam and custom upholstery shop. Remove tank and remove stock base. Make new frame on floor if want to raise off floor to get desired seat height (allows longer legs to fit better since higher and farther back than stock with thinner seat back). 3 point seat belt mounted to reinforced site for shoulder and belt goes straight down to retractable box on floor. 4” out of this seat leaves room to move belts without binding. Safety stop in unit needs free movement to work right. Room for those door cards and elbow rest but still good distance to window opening for your elbow.
Makes for extra work and cost since no “kit covers” will fit but is SUPER comfortable, choice of cloth vinyl or leather.
I did all this and it’s at upholstery shop now- gonna spring for auto upholstery grade Mercedes type pebble finish leather in deep brown. Lots of mods on truck are important but you can rank what matters to enjoying it ( brakes!, good comfortable seat, steering and pedal positioning, do on).
You didn’t ask but one more option:
I’m going to fab base and use heavyweight drawer slides to allow almost full width drawer to slide forward when seat adjustment all the way back and put all the electrical gear and audio under the seat. Ordered extra long tail on drive line harness to reach.