You can remove the curly wire on your E-11 as sandies didn't have them. That shoulder ammo pouch will probably be fine for PO but I would invest and get some better ones from here. The cap on your canteen should be removed as I've illustrated in the photo. Check out my pinned canteen thread in the Pack section for a better understanding on what I mean. Your armor looks great! Did that pack come from them too? If so, they've greatly updated their packs recently.
Just get some parachute buckles, nylon, and elastic from any fabric store and sew it on yourself by hand. I added it onto my straps and it makes a world of difference. You snap it together behind your chest armor.
I have option A. It's translucent and not a solid white like the resin casts are. Once you put it on a 5" plastic sanding disc backer that's been painted black, it looks great. Add a little weathering and ready to go!
Armor and pack look great. Please refer to this post in regards of all the photographs required for your PO submission. Additionally, we need a photo of your back without the pack on.
That's a great screen grab of the rebel trooper on Hoth. Can really see where the Karrimor frame was bent. Just need to get Ross' seedtrays and I'll bend mine.