Ummmm, me too.I bought one (a DIY10) from a friend that was built like the post said to even with the 2010. I then asked Duke about the 2510 and he said it would work.
I took the original apart and measured the cabinet, then built one my self, the frame on the front for the grille was a after thought. As long as you keep the volume of space in the cabinet the same you will be ok.
Actually, I have 2 more boxes built. But probably will not finish them. I am cutting back and only doing my Church playing. My knees need replacing and for me and you - I was born up there before it became a state - so getting to old for this stuff these days.
Do you mind sharing the cab dimensions with me, and the port size? As you know even buying a cheap cab from Speaker Express will cost as much in shipping!
Thanks!