I thought about that too cause I don't want to waste gear. I've had two gyno surgery in the past...I'm very sensitive
But I agree with you...I wanna keep water bloat down as much as possible.
If you're going to use Arimidex, look into starting it pre-cycle (.5mg daily ought to do you but it's probably an individual thing). It works by knocking off the enzyme which converts T to E, or so they say, so it would make good sense to eliminate the aromatase enzyme before introducing T. If you're running it straight through, SERMs are uncalled for at the end. Simply taper off your AI.
Look into Finasteride or Dutasteride if you are concerned about hair loss, although their sides are reported to be unfortunate for some (I never used them). Wouldn't Bromocriptine be required with the Deca too? Again, no personal experience with Deca. Also HCG 300iu twice a week imo (which you said you didn't want but 'this...is...Getbig').
Also imho, get into training regularly and eating right for awhile before doping up, but do as you will.