My suggestion would be to be completely up front in what you're willing to pay, even going so far as to add it to the job description. If that means you have salary 'bands' dependent on what region of the US an applicant is from, put 'em up.
Ninja-edit: also, if the money just isn't there, consider taking on someone on a part-time basis. $80k/yr is terrible FT wages for the senior-level folks you're looking for, but if you say "We'll pay you $80k, and you just clock in M-W 9-5 (or M-F 9-1, however the math makes sense for you to divvy up a 20-hour week)" I think you'll see an uptick in interested, qualified applicants. Yes, it's a compromise (just like asking a senior-level anything to show up for $80k) but at least you'll get the senior-level brainpower on the team and still be within your budget.
Ninja-edit x2: Looking at the 'Team' page, I'm not getting a good sense of where your devops/engineering talent hails from. The folks who appear the most USian are the guy who lives 'on a farm', another who 'attends SFO Giants games', a third who 'enjoys the slopes in the Sierra Nevadas', etc. Everyone else's location is either unmentioned, or they seem to hail from Brazil, the UK, Greece, etc. The interactive map at the top seems to be mapping the accounts of suits and c-levels, but very few devops/engineers.