As @tbone1004 suggested, parts costs get a little prohibitive with Poseidon. If you liked those regs in the past, you're in good company. They're all easily returned to service.
If you're undecided, for the cost of 2-way postage it's easy enough to look them over and let you know what you're in for. @tbone1004 had it right in picking the parts most likely to have failed in storage, as well as their rough cost. But if they're not all affected, you could be looking at much less. And I have used and new hoses in stock.
Still, there are other brands that can be serviced for less. It all depends on where your preferences lie.
Only one way to find out unless you just want to reBay them. No charge for me to take a look.
If you're undecided, for the cost of 2-way postage it's easy enough to look them over and let you know what you're in for. @tbone1004 had it right in picking the parts most likely to have failed in storage, as well as their rough cost. But if they're not all affected, you could be looking at much less. And I have used and new hoses in stock.
Still, there are other brands that can be serviced for less. It all depends on where your preferences lie.
Only one way to find out unless you just want to reBay them. No charge for me to take a look.