Could you document when you join those new pieces into the cabinet? Mine is trash in the back. Needs a new roof, the panel below that, new door, and probably the one below that. Might need a new floor, too. It's just teetering on the point of burning the cabinet and finding a new one because the sideart is still usable. I'm still sort of on the fence about finding a better cab or saving this one.
Sure... the way I removed them may also be pertinent. I first unscrewed all of the blocking screws on the inside front of the cab which hold the front panel on. Then, with a real stiff 4" putty knife, I separated the front from the blocking by tapping it in along the edges to break the glue bond, working from the top to the bottom. It takes a bit, you may leave a few pieces of the front on the blocking. Once the front was off, I did the same putty knife technique along the base. However, the base is also nailed from the underside to its blocking, so you need to pull the nails out first before you go trying to use the putty knife to break the glue seal otherwise you'll just run into the nails. After I got through most of the glue, I used a rubber mallet to strike the base from the inside to get it free. Then I peeled it off from front to back... it kind of crackles off of the angled piece but I don't think you can avoid that completely. After I got the bottom off the angled and lower rear panel piece just popped off pretty easily.
All of the blocking is left in place so the new panels should just go on pretty quickly. I don't want to remove the blocking along the side panels as I'm afraid it may accidentally pull too much of the particle board material with them. My plan is to staple and glue the two bottom pieces first then put them in place and staple and glue them to the cab as one. Then put the front and then the rear panel piece on.
We'll see how it goes...
PS... I'm purposely not showing pics of the machine... it's a bit upsetting
... I had (what looked to be) a perfectly put together machine... now not so much. It did really need the work, once I got to the underside of it, it was really in bad shape, it must have sat on a wet surface, two of the t-nuts were non-existent and the holes where they used to be were damaged so badly that I could not simply replace them.
"Oh my... R2 can you hear me .... say something!"