You are perfectly set up to get back into the 121 airline career. There are plenty of out-of-currency/recency military pilots who have been doing the same thing you are over the last year or two, given the current state of the industry.
As has been said, the regional airlines are hurting for newhire talent, and they'd love to have someone with your experience *immediately*. Even better, with a year or two of flying at a regional, you're going to look very competitive for that "career job" (for the last 17 years you have...) at a major. Most guys in your non-current with similar military flying experience shoes have moved on from the regionals in less than two years.
IMHO, you should go to your local flight school and get a couple flights to knock off the rust then get a formal Flight Review and an Instrument Proficiency Check. At the same time, start working on getting the paperwork and requirements for the airline applications together (that is a bit of work in and of itself). I predict that you'll be getting calls from regionals to interview within a day or two of submitting.
FWIW, there is at least one (and probably more) regional airline (ExpressJet) that changed its initial training syllabus so that they could hire military pilots with the centerline-thrust restriction on their Commercial. I would weigh what additional pre-ATP training is offered when deciding which airline to accept a job offer, as the CTP course (the pre-ATP written) is an expensive bill to foot on your own.