Going Green.....
If they are titanium , I think 17.40 sounds fair to good.
The difference in machining Ti vs. brass makes the price easy to understand.
I should add............Man , I was really hoping to read a " ran like a Thoroughbred " story. It sounds like you are on the trail towards making it work though.
Did you start with new lines ?
Once I get a personal obstacle out of the way , I'll be doing this same dance.