If you go with the PVC tube idea and the 99 barreled action won't fit inside it, simply use a small diameter tube to subtend the barrel and attach an extension tube big enough to hold the receiver too by employing a PVC reduction coupler. I've only done takedowns wherein I simply boiled the separate receiver in a big sauce pan.
If anybody can't grasp what I'm describing let me know and I'll snap a pic of my setup and text it to you.
"You can lead a man to logic, but you cannot make him think." Joe Harz
"Always certain, often right." Keith McCafferty
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