I'm around your age (54 in November) and while we're not playing very many venues as nice as your pictures -- we are playing roughly 200 gigs a year on average... Mostly bar gigs, full 3 hour nights usually (Original Blues, Roots type of stuff). Along with working a regular day job (luckily I can work from home most days).
So, I can feel your pain!!! This particular outfit has been doing it now for about 8 years... and it does take a little more of a toll each year - I've taken to letting the young guys haul most of the heavy stuff and also let them do most of the driving. They're OK with it and it's a big help for the old man in the band - trust me!
You appear to be in much better shape physically than I am (at least judging by the photos) - so I'm sure you'll adapt. I find it all catches up with me every couple weeks and I might be a total wreck and sleep a Sunday away... Cat naps before a gig (in the van if necessary) help... I've had to totally cut out much of the socializing (especially involving alchohol/drugs) -- I just can't do it anymore - the recuperation process isn't worth it 9 times out of 10.
Good Luck - the kit does look great
Peace!
Mike Noll
Nate Myers & The Aces
www.natemyers.com