Geez Tom what a lot of bad luck
Best to get past it and build yourself one great scope
You said it will have a mirror made by Mark. I have seen his mirrors and wow
My friend has a 10" one and it blows away my Meade 10"
You would have to see it to belive it.
True story

under good seeing we used 1500x on the Moon with no image break down

top mirror
Tom good luck and I'm sure it will be a great scope in the end.