I truly lucked out. I have a great relationship with the local pet store, and I am their resident vet. I usually stop in 2-3 times a week to see if any of their animals need any care.
Anyway... they all knew I have been planning on getting an octopus for a while and have been doing my research. They bought me a tank, cabinet, and canopy, and convinced their Hagen rep to donate most of the other supplies needed.
I had already purchased a 125 gallon wet/dry with a refugium and a Prism Pro Skimmer, so I should have my octo tank set up and running within 2 weeks. (With the addition of a Fluval 404 canister filter --- can't really have too much filtration, right?)
I couldn't be more pleased or touched.