Not to change the topic
Yogitunes you are right. My first range was a Gibson and the rotisserie was an option I installed. Sounds like a similar setup. You are right....it really worked well. Wish I had it today!
27 inch drop in
You will need to build a base for this to stand on. Often times they would build a drawer into this base. Also a side panel on the right. They still make these 27 inch models new but they are very pricy.
Consider yourself fortunate....
Most warming drawers today sell at or above $1000. They're probably not worth that much, but that's where the pricing is.