First, is there any way to use the new gel yellow labels?
yes. take an organic lab course, they'll tell you everything. i didn't wake up for 9 in the freakin morning so you could find out the easy way.
Also, anyone know anything about vets esp. vets in the US east coast (relating to K)?
sure.
ketamine is federally Schedule III as of august 1999.
it WILL be kept locked up, probably in a very secure safe along with the morphine and barbiturates. most vets did this before, since breakins at animal shelters were widely publicized.
vet assistants probably won't have access to it; they have no reason to handle it. most likely the vet takes it out of the safe, fills out the DEA forms, then uses it.
kinds: it would be an american formulation of ketamine hydrochloride USP, 100 mg/mL. most likely Ketaset or Ketalar. they are identical.
cameras: there was one time the alarm at a vet's clinic near me went off, and i could hear it damned far away. it might have woken people up. cameras, well probably at least one. it won't matter though; you won't have enough time, the police will, and you'd get caught trying to steal a controlled substance, no cameras necessary.
how often is it used:
very, very often. ketamine isn't used in dogs, but it will be used every time a surgical procedure is performed on a cat. this includes neutering and declawing.
if that makes you want to be a vet, remember that it takes at least 8 years, costs a damned lot, and involves blood.
non-vet places:
yeah, sure. animal shelters, hospitals, research labs, pharmaceutical factories, fine chemical supply companies...
except that it's all locked up. and there's an alarm system. and probably cameras. and maybe 24 hour security. with guns.
you are not going about this in the right way. at all.