yea, these should do Just form an U with them, and try to attach it to the plate (so that it suits the stabilizers). Either glue it down, or maybe solder it in place. But these are just ideas, I never did it myself
I actually drew a WKL SGI plate so my friend could build one just like that. I can pass on the file to you if you want to get a proper plate cut with the stabiliser insert holes in the correct positions
Thats would be amazing, i will struggle along with this one for now but i would like a real plate, ideally anodised in purple aluminium, i will also have to investigate the maximum thickness a alps plate can be for better rigidity.