Spruce

I've located a source of spruce in British Columbia that appears to be very
good. http://www.timberwright.ca/aircraft.html
anyone dealt with them?

This is for Spars, BTW.

The spruce they supply is uncertified, air -dried and unfinished, but
exceeds the criteria for certification.
They can't certify it as they don't have the equipment,but it is for a
homebuilt. The only thing I'm concerned about is the air dried part of
this. I can get it kiln dried near me, though. Anyone know if this is good
practice? Anything I should be looking out for here?
BTW, their price is half of what ACS is looking for the same dimensions.