"And what about maintenance? I can't and won't keep up 45-60 minutes, 5 days a week."
Easy maintenance would be something like 100 pushups, 200 bodyweight squats, and maybe 4 minutes worth of burpees (buy a stopwatch, it's one of the cheapest, most underrated pieces of workout equipment) 3 times per week. Do 20 push ups followed by 40 squats, rest, repeat 5 times. This shouldn't take you longer than 45 minutes the first time you do it. Once you get strong enough to do sets of 20-30 push-ups and 40-50 squats, with only around 3 minutes rest between sets, you can complete this work in under 30 minutes. Throw in some random stretching and ab bridges, and you've got a quick easy way to make sure you're doing enough to not get fat, provided, of course, that you're not eating like a pig every day.