You obviously have a lot of experience with lifting and know what you're doing... You know as you get older, getting rid of that stubborn extra just gets harder. Your body has to hang on to some of that extra body fat for normal body function, namely hormone production. If I were you, I'd dump the lower rep/heavy lifts for maybe a couple of weeks. Those heavy lifts boost hormone production of testosterone and cortisol. Good chance at around 12% your body needs that to continue to produce those hormones at your age. I would do lighter sets and more reps, 12-15 to scale that back just a bit for a couple weeks. This also might break any plateau you might be on. Also, too much cardio might be counterproductive for you while you're lifting. Since you lift 5 days a week, you're constantly moving glycogen stores and protein for muscle repair and growth. This obviously keeps insulin present as long as you don't go several hours without eating. The body doesn't want to (can't really) burn fat in the presence of insulin and any aerobic exercise you do will target the moving glycogen stores for energy instead of targeting the existing fat stores.
If you'll consider more reps, lighter weight and shorter breaks between sets, you'll get all the cardio you need and still have an extremely high post exercise excess oxygen consumption (EPOC) which is the real benefit to cardio when losing weight anyways.
If you want to do cardio, keep the session short, very intense, and if you can on an empty stomach. I would not do it on a day you've already lifted.
Oh, and maybe scale back on the booze a bit...
Kidding, just don't "hammered" every time you reach for the scotch.
my $.02