You should not be cycling anything at 22% BF.

To answer your questions, in order of your questions...

. Wasting your time with deca. Don't consider.
. Test is test. Doesn't matter what ester you use. Stability is vital.
. This is not even a valid question. What are you asking? If you need arimidex and caber? If so, yes.
. CC's don't mean anything to us. We only speak in milligrams. Agan, stability is what's vital. IE a steady dose throughout.
. Will you be OK? In what terms? You'll need to perform PCT then check blood work to verify recovery.
. Yes, you need Arimidex. Dose depends on testosterone dose and how your blood work looks.
. Yes, you can drink. Excessive drinking is unhealthy. Enjoy but in moderation. hCG on cycle, not during PCT.
. No. Do not use Arimidex during PCT.
. Supplements won't hurt. But all you need is Nolva and Clomid for recover.
. Depends on length of cycle. 4 week PCT should be enough for average cycles.

No offense, but you should stay clear of any steroid use. You're not ready. My recommendation is to abort your current cycle and spend your time in the nutrition section so that you learn how to lose weight naturally.

Good luck.