After a little while of messing with a hot knife and a lighter I shaved off the front of a hybrid backplate and removed the aluminium support so it was skinny enough to fit in the pulse board cover.
I've actually tons of work to do but copious amounts of caffeine combined with boredom and procrastination resulted in the above at 3 in the morning. LOL. I'll whip out the other stuff and have a jab at that when I get bored again, probably at 3am tonight.