Cycle looks good, having a few nolva handy is a good idea but I don't think you will need enough extra to last ED weeks 2-12, but you can always use em later. 25 mg a day for a couple days clears up anything I've ever experienced, but I am not sensitive to gyno effects.
Taper off your arimidex as the test is clearing during weeks 10-12. If you stop it suddenly you can have an estrogen rebound from the excess aromatase enzyme floating around. I would suggest week 11 .5 mg E3D and then .25 mg E3D week 12.
Discontinue HCG 4-5 days before beginning pct.
Injecting into quad is ok. My first cycle was E3D injections and I strictly put it in lateral quad. Warm your oil by running the syringe under hot water for a minute, push the needle in slowly all the way, ASPIRATE to make sure you aren't in a vein and push the plunger in good and slow to minimize discomfort. Also replace the needle after your draw the oil out of the vial with a fresh one before sticking it in. Push out a small bead of oil on the tip, and tilt the syringe back and forth to lubricate the needle, it makes it go smoother.
The needle size you are suggesting is a little small in volume if I may say so. I used 23g 3ml 1.5'', but that was a bit big. .5ml is a very low volume, you will have to do multiple shots unless your test is like 500mg/ml (you can combine hcg in bacteriostatic with your oil and inject it all IM btw)
The needle length is also a bit small, many people suggest using insulin pins but I'm unsure of the length and volume of insulin syringes that are not U100. I think an inch would be a good idea, especially if you have some fat there, you want to make sure you get it into the muscle. I used to push the full 1.5'' and I have a low percent body fat.
Good luck pal