The answer is yes. But of course that is a long time to wait..........for something you won't get many other places.
When I knew I didn't use my 30x70 Shirley I sold it, but knew (even as little as I stick burn) I couldn't be without a Shirley so I ordered the 24x36 which only has like a 8-10 week wait.
You could shorten the time by checking out the 24x36 patio as it has a ton of space. But totally get ordering something custom. Hell you could order the 24x36 and just sell it when your's is done in 3yrs. What did you order that the 24x36 doesn't have? Trailer, etc?
Or you have options to find a similar stickburner in the short time to play with while your's is being built? It's a long wait, but it's either wait or maybe never have one. All up to you. There are other builders out there that make solid cookers with shorter build times.