I built a beautiful replacement chassis for my Korg Poly-61. Now I'd like to build one for you. The sides and front rail are crafted out of solid walnut which is quite expensive. The bottom panel will be made out of quality Baltic Birch plywood which is a popular furniture grade plywood in Europe.  (No particle board or utility grade plywood here. *Pictured is an MDF bottom panel because I did not have a source of 3/8" furniture-grade plywood at the time of building mine, but yours will be upgraded to Baltic Birch.).  
Other than the internal battery that would often leak and destroy a Poly-61, a common complaint of owners was the cheap particle board body that banged up and crumbled easily.   Likely, yours is suffering that problem. Then maybe this is just what you need to make your rare Poly-61 look better than factory new.   Not only will this upgrade increase your pride in your great sounding analog synth, but it will also increase it's resale value.

RF shielding will be installed in the same size and area as it currently is in your original Poly-61 case.  The bottom is hand-rollered jet black. Furniture nut inserts come pre-installed. All you have to do is transfer your existing keyboard, circuit boards, bender unit, power supply, rubber feet and use your existing screws. I'll include a sheet of all the metric screw sizes in case you are missing a few and need to pick some up from the hardware store.

Instead of staples and glue, I chose to attach the finished end caps with wood screws from the inside. That way if you should ever bang one up, likely you could get a hold of me, and I can make you a new side vs. needing a whole new chassis.ion is not for a synthesizer, just a Poly-61 chassis.   **This is a custom order item. Upon purchase, I will start work on it and and have it shipped within 10 days. I am not responsible for any damage you do to your synthesizer.