These are similar to your kit. If your arms are thin you won't need all that extra material. Just tape them up and check fit before cutting. Sent from my SM-N920V using Tapatalk
Just about finished with this helmet a couple things left. I enjoy looking at helmets I hope you like it.
20140309_174809 by nrubi2007, on Flickr
20180929_125852 by nrubi2007, on Flickr
20180929_125923 by nrubi2007, on Flickr
20180929_130133 by nrubi2007, on Flickr
20180929_130520_001 by nrubi2007, on Flickr
20180929_130618 by nrubi2007, on Flickr
20180929_130723 by nrubi2007, on Flickr
20180929_130803 by nrubi2007, on Flickr
MTK is one not listed here, but has a very good reputation. He's also known as trooperbaycom, and sells many costume supplies. A safe choice.
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Your thighs look pretty tight. I would size them by allowing enough room to slide your hand in the back of the thigh
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Looks like scootches armor or some old CAP, ATA. These are good armors. MOT armor is the one to avoid, its sold on ebay.
After you get it painted you will have some nice armor.