beetle looks very nice.good to see that axle material going to good use!...i need to start using mine for this so i dont need to dril em out. full flaps, he probably uses some narrow snips to snip the axle, pop in some axle tube(1/32" ID tubing and press in or glue in the axle stubs from the new wheels) just cut axle in half and will slide right in.
What i do is cut one of the old wheel off with some dikes ten i can snip the end off of the old axel. Then pull it out. Now the base is still in perfect factory condition.
Then drill the axel path out a little with a 1/32 bit to make it so i can slide the tube in.
Then i cut the old axel rod in half or use the ones from the donor wheels which i have to drill out to keep them fron getting buggered.