That kit looks correct, but do you need all that hardware? Before ordering that expensive item, see if you can reuse the existing hardware. I think the original cushioning material is a heavy rubberized fabric of some sort. You might be able to find a replacement material or reuse what is there.
Kent


1937 Chevy 1/2 ton
1942 Chevy 1/2 ton
1947 Diamond T Model 509
1951 Chevy 1/2 ton
1950 Chevy COE Model 5700 ~ "Barney" ~ And more pix