Having the tubes laser cut simplifies the motor mount jig
as they become largely self aligning. Just like pre punched holes in a Van's kit. The tube lengths are accurate to one one thousands of an inch.

Alex sent me some steel straps of the Tango fire wall hole pattern so
the motor mount would fit if we welded it out here in CA. I used these
in the jig. It is not done yet as I have to add some parts to
hold the welding cups in position for the main rubber bushings.

Shipping a welded motor mount coast to coast is costly due to the
size so if it can be welded locally it would be cheaper.
The local welder person needs to be a good welder but he does not have
to be highly skilled at fitting tubing joints. That fact increases the
size of the labor pool :)

This took me about 2 hours to build from home depot perforated
angle. It takes about seven, four foot long pieces at $10 each.
You will also need a box of 5/16 or 3/8 bolts and nuts.

Paul Lamar