WonderCon and ComicCon

Due to my awesome girlfriend who works in the media world I have professional passes to both WonderCon in SF and ComicCon in San Diego.

I want to do a costume for it and I wanted to go dressed up as a guardsmen. After thinking about it long and hard about it due to finances and my own abilities I am going to go with one of the old school stormtroopers with beret.

Items Needed:

Beret Black or Red
Black BDU Shirt-Check
Black BDU Pants- Check
Black leather combat Boots- Check
Gun Belt
Holster to hold a Hellgun
Hellgun with power cord and power unit
Backpack to hold power unit
Faux Frag Grenades
Random Gear (Nightvsion, Vox)
Knee/elbow pads
Fingerless gloves-Check
Imperial Patches/Cap Badges

Not sure what else to include.

Any ideas are very welcomed.

Item wanted!

Does anyone have the backpack that came with the Apocalypse special edition they want to sell? Or know where some might be for sale?