Nevermind! I went ahead and got some new blades for my box cutter/utility knife and it worked really well. My hand is a bit sore but I've got all my fingers still! Cut out just about all the pieces I need. Still need shins and back plate, but I need to buy more sintra for that.

Chest pieces. Shoulders are 3mm, rest is 6mm. Probably gonna recycle my old shoulder armor too to use as a 'second' shoulder for a bulkier look.

Gauntlet pieces, or at least the basics. Recycling the backs from my old kit, and my left gauntlet is gonna be using my old phone as a data pad. Gonna greeb it up, of course. Also the vaguely circle-shaped piece and the smaller square will be a housing for a portable charger for said phone, which will be running a slideshow of 'inmates'.

Right gauntlet will have a taser set-up. Still need to find or make a transformer box and a battery pack, as well as cut out the plating for the back of my hand/knuckles.

And my leg plates. Thighs and knees. Will make shins when I get more sintra, along with the back plate. Also helper-cat decided to 'help' by sitting and being cute (this was after many times he interrupted my work by literally sitting on my sintra piece. :|)
Boots should be here this week, gotta think about my girth belt, ammo belt, and how to disguise my actual phone, which is pretty large! Anyone have any ideas for how to disguise a Nexus 6? I don't want it in my armor, but I'm not sure if a pouch for it would be too big.