I've been hesitant to post this, because I've read other posts regarding this and other subjects, and am afraid I'll be attacked on a few of my choices, but oh well, here goes it:

My 3+ year old python isn't eating. He's over 3 feet long, in a 30 gal breeder, temps 80-84 and 89-94, humidity 30-50s (misting to 70s before sheds). (checked with acurite)

He used to be in the living room, right next to the front door, and never had issues eating. The rats were medium, and after older posts, this may be a little large.

A few months back, right after xmas? He was moved into the kitchen, on a higher buffet (than the low coffee table he was on). He'd eaten there, maybe a few times and hasn't eaten since. He had some new props, new caves, new water bowels, so I assumed he was adjusting, and just kept trying every week, same usual feeding day.

Here's some of the things we've gone through with it:
20-30 minutes observed. Aggressive white rat, he even scared me. I put him in a med plastic waste can (was in my office) with food and water, tried a week later, same result. Eventually escaped (those suckers can jump!). Trapped and tossed.
Second rat, smaller, more docile, same result. Used a 10 gal+ fish tank with something over the top (but admittedly, had 1 inch gaps on side of top). Also escaped, trapped, and tossed.
Third, used hamster cage to keep in between feeds. After 3rd week, let it go in the woods. Felt bad hamster got his housing cut in third (its a second smaller cage attatched to the 2 story one).
Fourth buy, small rat. Same results, leave in for about an hour, keeping an eye on them back and forth. 2nd try, tried for an hour, then left in overnight (I know, I know, just asking for it). Snake and rat were checked in the morning. Rat seemed tired/labored breathing. W/in 30 minutes, he had died. Not sure if he was bitten/squeezed or just unhealthy. Weirded me out.

This week, we got a mouse (hoping smaller = more edible), and I have rigged the small aquarium for him so hopefully he will not be escaping like a few of the others in between attempts.

But I'm concerned how long I should keep trying before I hit the vet. Osiris is still plumpish, drinking, even stalking these meals, but seems to chicken out if they come near him. I've put them in a separate box before too. They more often than not, end up napping together.

Bedding has been changed, cypress back to aspen, no signs of mites, no wheezing/drooling etc.

Any tips? Am I missing something here? I check the temperatures obsessively. Keep up the patience til he 'catches up' to all his other perhaps too large of feedings? Try moving to another room (haha there IS no other room...), cover tank, play soothing music, light candles, and pray?

Thanks
and please, no yelling
I was desparate in leaving the mouse in overnight.