Is it a bad idea to buy a used torch?

I was going to buy a used Nortel Major/Minor for 200.
What do I need to look out for as far as getting ripped off?
It's from someone I met in a group on Facebook.
Should I have him make a video of him firing the thing up?

Don't fuck with your safety, or succumb to drama BS related to defects that the shipper denies

Buy a new torch, you reap what you sow

Never.