I"m 6'5" and going to be 65 shortly, arthritis is my sore point, so some years ago for a whole long list of mods, in '01-02 winter, I pulled the car up on stands, and basically tore it apart,,...just a body on the frame, it and me had a long though out conversation.....
I have a TTele wheel in there from a '78 up car, and so with the later shark wheel....I pulled the column back with a piece of 3/4 wood as a spacer, flipping the silver slip thingys' around on the flange, I obviously keep the wheel extended toward me....
I cut the floorboard on each side in a U shape, from the bottom of the column height and down/across the floor following the contours, wedged it in with a stick against the back thwart, and glassed it in....bought another 3" of room on the bottom there, that allowed me to cut/weld the brake pedal for lower, and heat/bend the gas pedal lever too.....dropping my knees a solid 2" off the wheel area...I NEVER hit any levers now....
the rear of the seat tracks had the flanges removed, lowering it about 1.5 inches in back, run the seat back snubs up a piece to keep seat reasonably off the back convertible top hatch.....pulled out ALL the carpet/padding from under the front flanges to gain 1/2 inch there too....when I recovered my seat first time 15 years ago when buying the car, I re used the OEM seat foam, the aftermarket crap is made for show car plump show winning looks, but it sets some 2" higher....making my head hurt getting in and out with the top up....I removed the seat belt cover, and some springs from the seat bottom to let it sag lower even yet.....
I think you will find just swinging that firewall forward, and lowering the pedals will have a HUGE affect on your seating, my wife is a foot shorter and 120 lbs lighter, little old bitty thang, even she can drive it by running the seat up and using a cushion behind her....
BTW, I drive in the James Dean slouch position...right wrist over top of the wheel 12' position,....leaning on the console cover, way back raked.....
I don't smoke, so I can't complete the pose.....
:devil::cussing::surrender: