I'm trying to design a pot still that can utilize as much of my existing equipment as possible WITHOUT making it useless for beer brewing... for instance, instead of using a pressure cooker I'm planning on making a mixing bowl top that can be clamped to my brewpot.
Storage space is at a premium in my apartment--and copper prices are insane--so I'm trying to think of ways to use a wort chiller as a condenser. I don't actually own a chiller currently (use the ice water bath method) but if I'm going to spend the money I demand that it do both. The main difference is that an immersion chiller has the entry and exit at one end of the coil (so you can place it in a pot of wort and circulate cooling water through the coil, then let it exit at the top of the pot again).

Obviously if you used this as a condenser, you'd just end up with a copper coil full of spirits... but cutting it off at the bottom would make it useless as a wort chiller. So I'm wondering what solutions others have found?
The only idea I have so far is trying to rig something that essentially mounted the chiller upside down above the boiler, sealed inside a secondary ice bath container... but that would require somehow sealing the entry/exit in a container of some sort, in a way that's removable for when I need to use it right-side-up for brewing. Grommets might work, or it might be a leaky PITA.
I'm sure someone has invented this wheel already, so I thought I'd ask.
Thanks!