When you commission any type of custom build , you need to expect and accept delays.... especially post covid. I fix medical equipment from mfgs all over the world. They say 3 weeks? Plan on 6. I hate telling customers that their $20k swiss microscope is waiting on $60 parts thats back ordered til March.
I'm having something built now. No promise of any delivery date in June when I ordered it other than hopefully by end of year. You know what? If I get a call saying it won't be ready until February, thats ok because I had no preconceived delivery date to begin with