So using that rough 5 level, 3 hrs a week is Lightly Active, and doesn't sound like daily life bumps it up much at all.

I would suggest, don't waste that much time on ab work, it would be better spent on more full body workouts.
You can do leg extension and curls to engage the biggest muscles in the body, perhaps they even have that glute machine that doesn't require pushing with leg.
Don't do any 1 legged stuff except perhaps spin bike for 15 min, don't need unbalanced body.

And are the workouts lifting style, 2-3 sets and 8-20 reps and rests of 1-3 min?
Or Circuit style with 15-20 reps, 1 min or less rest, cycle through the lifts 3-4 times?
You just want the same difficulty with good form (keep it) at the end of 15-20 reps.

I'd suggest the Circuit right now, it burns more, and since you never did any lifting prior, it's not like you are trying to maintain strength gained from it.
Circuit will have you seeing some great improvements, will increase TDEE more than straight lifting, meaning with 10% deficit, it's bigger, and you still get to eat more.

Here's one I've done, now I kept a true lifting day at working weight to maintain my strength, but the metabolic lifting (circuit training) added some great ability too.
This is using dumbbells actually, so hopefully you can keep the needed weights around your bench, plus maybe couple other machines.
Overhead press/shoulder press
Jack-knife situps
Bent-over row
Leg curl machine
Bench press
Leg extension machine
Lat pull down machine
Glute bridge with weight or machine

4 x 15-20 should take almost an hour, hitting all major muscle groups. Mostly dumbbell except for legs and lat pulldown. Could do assisted pullups too, or the negatives (step up and lower down, as many as you can do up to 15).