I buy raw tonkin in 8-10mm shafts, 4' long in bundles of 500 for less than $100. The raw boo straightens easy and is a lot tougher then the caramelized shafts.
Shipping would kill you, though for that much.
I got them from the same company (I went nuts and bought a gigantic box of 250 or so), but at their California location. (or their partner?) A lot of the bamboo was rather grey colored, while I think healthier bamboo is a brighter yellow color. I've had a lot of trouble getting them straight enough, it really doesn't seem like straightening is easy. I should try DBar's jig. That you now find it easy is actually encouraging... I do get a bit overwhelmed when straightening though. Should learn to relax.
The great thing of ordering a lot is that you end up with a lot to sort through and match.
I've broken plenty of them. One even split in half. I guess some of them are rather rotten. But others are very tough.
I'm pretty sure that this raw tonkin is imported from China?
It definitely makes great arrows, but I think it's a lot of work to straighten and sort shafts, vs buying matched shafts, which are almost finished arrows by comparison.