Keep your eyes out for the exchange rate between the British pound and the US dollar.
I was going to try my hand at making my own pipes w/ parts from cone engineering, but I was able to buy a new set
from DSS for $586 + 115 shipping - granted $700 is still an arm and a leg, but it was just about the same price as the
parts I would need to build my own, and I had them in 4 days.
I still haven't found a better source of parts than I did from Cone Engineering