Nice looking fly there. I'd be curious to know how it fishes for you, for I fish for Bass and have tried many crawfish patterns w/o a whole lot of consistent success. Problem is similar to you with materials not being available. Almost all the Bass I catch (those I keep to eat) have eaten Crawfish of rather large sizes, so finding a pattern that I can tie large and works consistently has been a task. By large, I'm talking 3" lg in size. I have archived many Craw patterns, but have yet to get it right.