you have the bases pretty well covered...xanax and clonidine work great for restless legs, insomnia, and general discomfort. How are the muscle pains? It sucks the only thing that could help are nsaids or maybe tramadol... Jacuzzi tub is an excellent idea... Drinking enough water really is key as well. Drink at least 8 glasses a day, and try to get some healthy meals in. The sooner you are able to get out and excersise, the better. Building your own endorphins again is what will make you feel normal again.
I am on day 4 of withdrawals, not as steep as your habit but I have been there before many times. I am lucky enough to have a caring girlfriend, and when I am past the worst of it, sex really really helps to feel better mentally and physically. I have not been lucky enough to have xanax and clonidine before and sex/excersise is my only chance at getting sleep.
Well hope my advice helps, you seem to have a pretty good plan... Just keep a healthy active lifestyle as soon as you can and you will be feeling good sooner. Best of luck, kudos to you