1/182 1/16" to the foot.
Yes, been a while. Rainbow took a while, and I'm not happy with her. Rigging was a nightmare. Think I'm getting old!
The drawings you have. I assume they are drawn by someone reputable or you wouldn't have them. I have usually got builders drawings from Greenwich, but they whacked their prices way up a few years ago to then about sixty quid a sheet. They haven't answered my current query yet but I'd lay money on them being up again.
What price your drawings, and how transmitted?