A guitar buddy of mine has an old 15" Jensen k130 and wants an inexpensive plywood open back cab for it. I've never built a guitar cabinet before but that's never stopped me on any project before so we're going to take a crack at it. I figured I'd ask the experts before diving in. After some research I was thinking 24x20x12 should work at fit nicely under his 24" Fuchs head. 3/4" plywood. Veneer for the ply edges. Handle. Corners. Feet. Jack. Grill cloth. There are plenty of 1x12 open back cab instruction sets out there. I am assuming that I can just work off of that as open back cabs need a lot less math than closed. What am I forgetting? Any tips on vintage-ish silver grill cloth? Big question: front load or back load the speaker? Thanks for all the help!