Strange question, but I like to tinker with my gear and make one-of-a-kind concoctions. I’ve got an original Fender Excelsior amp with the first generation Chinese speaker, which I’m not crazy about. I came across someone selling an emptied out Blues Junior cabinet on Craigslist and a G12 speaker. I’m wondering if anyone knows the dimensions and ins and outs of the two well enough to know if it would be an easy fit to put the guts of the Excelsior into the Blues Junior cab with the 12 inch speaker? I'm thinking it might be quite the upgrade for the Excelsior to pair with the Celestion. Plus I've always thought the Excelsior cab would look cool as just an extension cab paired with a small low wattage head, so I'd already have a jump on my next project. Would this work?