Little progress this weekend...not much but better than nothing! Prepping the ‘59 Oil Cap before attaching the OEM Magnum Oil Cap, attempting different things to attach the 2 together and I think my best route is to use an aluminum spacer cut down to length and Epoxy the 2 together. I used different sizes to get the height close to allow for the contact of the Epoxy allow the Magnum cap to sit down inside the ‘59 Cap.
Open to other suggestions if you all think of something different to attach the 2 together!