1955-59 Porterbuilt rear drop member rear end?

[Mattyparty]

Currently Have a 1959 Apache and wanting to run the rear dropmember for porterbuilt. Here is the question. I am wanting to run 5 x 4.75 wheels from a previous project. Anyone have any suggestion for a replacement rear end that will have that bolt patter and the right length to fit under the apache and also work with the porterbuilt drop member brackets(im assuming 3 inch axle tube).

Any input is helpful

Thank You