I guess it's time to start a build thread on here...
I got the Murray frame from the EBay and decided to build a top tank GP styled bike. I had lots of parts left over from a maxi build and acquired some new parts along the way.
I (carefully) cut the rack off the back of the frame. It's still very straight and usable if anyone needs it!
I'm using the Honda headset conversion from puchshop but modified to accept tapered bearings. Honda MB50 forks and triple-trees. I had to cut about 15mm from the bottom of the head tube. The puchshop conversion is also for a maxi so I got some blue spring stock (18g thick) and wrapped it around the cups before pressing them into the Murray head tube. Fits like a glove!
I pretty much eyeballed the top tube after looking at lots of pics of different Magnum frames. Seems to look correct but I'm sure it's a little different. All the tank/seat mounts are not permanent so I can always switch things up in the future. I got creative with some seat clamps I cut out of the maxi frame.
The motor mount was slightly off kilter so I cut one side completely off and mounted the E50. I pulled it closer to center and welded it up. The back of the mounts were also boxed in for extra strength.