55.2-59 1958 Saab story

[dsraven]

That's why I was talking body lift kit. Like a 4x4 body lift. Get the body to chassis/wheel fitment where you like it and then lift the floor off the chassis to get the dash where it needs to be. You also gain tire to inner fender clearance at the rear then or you could step the floor down behind the front seats. Use a pickup box floor from something with a steel floor and you get instant wheel tubs at the same time.
Just some thoughts running through my head.

[dsraven]

I would say keep trimming but beware of cutting into the firewall if you want the heater to bolt up. There is a fresh air pick up hole for the heater that you will likely wanna keep. You likely will need to fab up some alternate wiper arrangement when it's all said and done.