OMG I feel for you. The worst I've yet had to deal with was head lice and that was a big enough, bad enough job. Bedbugs must be that much worse.
Is the need for anything new to be able to go through the dryer for 1/2 hr. because you might need to retreat everything?
RHSS is tough, so I agree with Charlotte on that., and you don't want to risk ruining expensive yarns.
Best of luck to you.