I cannot possibly design a personalized plan of action for you, especially with all that different stuff, but I can share a little information I know about tapering.
Here's a link I found for opiate tapering. After that I'm gonna give you rule I've found on my own.
http://nationalpaincentre.mcmaster.ca/opioid/cgop_b_app_b12.html
How much can you say you can get away with reducing a dose in a day? Say you're totally unable to find good heroin, or enough. How much is JUST enough to NOT feel absolutely horrible? Some horrible is ok, because you will never escape that. I've tried cold turkey opiate withdrawal, and I will tell you it's a fuckin mess. It's possible to do because people
do in fact cold turkey this shit but it's a mess. I needed a methadone program unfortunately after 5 or 6 days cold turkey detox. I was not so strong at the time and work was in a day or two (did this over christmas holidays 2016. nothing like going to detox christmas day!)
Maybe now I could have done it cause Ive found a lot of empowerment lately, but back then I didn't for a bunch of reasons. Wish I did.. Anyway. going on...
I found, personally, about 2/3 of a daily dose is MANAGEABLE. Like if my optimum use was 3 30's IV hydromorph then 2 CAN be adequate.
A heavy taper in my opinion in a rule of thirds. Every day, scale back 1/3. 100% instantly make it 66%. The NEXT DAY go take that 66% and make it 44. The NEXT DAY bring that to approx 30%. Then 20% Then 13.33% approx etc. These low low numbers that's where you considering cutting the shit and going cold turkey. I guess this is where your clonidine and stuff can come in.
I quit smoking this way switching to nicotine substitution methods, immediately switching to vape with high nic and then every few days reducing the nicotine until I was near zero and then I stopped with NO ill effects. It took a lot of SELF REGULATION and WILLPOWER though. THings which I lost 7 months later when I bummed a smoke one day and then the next I bought a pack.
I know that cigarettes aren't heroin, but they are addictive almost equally. I know I didn't STAY quit, but that was purely mindset, I fucked up. You're substituting a bunch of things here. I hope it's enough. You need to make DO with what you have and stick to it. if not, just go to a fuckin detox. seriously. dont worry about mt story about how I was worried about going to work in 2 days so I started methadone, I should called in sick a couple extra days and fuck them. I wish I did that. Methadone is THE PITS to QUIT and even as a taper it is far worse than heroin.
EDIT: Methadone saved my life in other ways though. It took the criminal and financial aspect of dope out of my life 100%.