My shoebox experience is with a 49 wagon, and have rebuilt the steering box, the stock suspension, replaced all the body mounts. Radial tires, 205 75 15 35 PSI.
This steering linkage upgrade:
https://shoebox-central.com/1949-1950-1951-ford-steering-linkage-tie-rod-upgrade-kit-new
made an improvement in handling. The idler arm is much stronger than the stock one.
Much less side to side movement on the steering wheel. Might want to look at the camber kit:
https://shoebox-central.com/4953camkit-1949-1950-1951-1952-1953-ford-mercury-camber-adjustment-kit
Adds camber and helps with cornering. Also, Performance on Line, has a larger than stock sway bar, that I am installing on my 49. I'm also going to change to the Ford Aerostar springs, progressive spring rate, same wire diameter.
Also, I changed to Bilstein shocks all around...huge difference. CPP also has A arms for the shoebox + brakes, etc.
Currently in the middle of a road trip with the woodie wagon. Despite a sidewall bubble on the Coker tire we discovered the morning of the road trip. 300 miles on the tires.
Overall the car has improved handling, turns well at 63 on the freeway and winding roads. It has more fun factor in the drive.
Let me know if you want info on the shocks.
New modern suspension - Heidts, and maybe Scotts.