Well here is my take on building racks I was gonna build one til I found my 3/4 lenght rack
Steel is expensive right now
Intial layout jig ,measuring and fitting etremely time consuming
Quantity would be the only wayto make one cheap
Right now ther are already a few on the samba once and a while and plenty of reproductions being made by venders and when you weigh it all out it is cheper to buy one already done
No I'm not saying you can't do it but research it weel before you start Good luck