This is a mid mounted triple, I did not like the thin mid ring so I replaced with a non-ramped Blackspire ring.
the ramped ring was too thin and flexed a lot.

Obviously I've got some gears back (don't try a tensioner like that, it's for the Der.)
If you just mount the ring, get bmx single plate chainring bolts..I using longer as I am going through 2 rings...I used the bmx bolt to fill the granny holes (looks cleaner, keeps mud out).

My guard is the original 46T with the teeth ground off. I'm not sure if the rear mounting of the cog would be easier to get the straight chainline.

Probably the only real thing i'd like to say is check the chairing -no Biopace ovals, no ramps, and not flexy.
( my blackspire was mm thicker and beefier.)

being a geared rider I probably shouldn't give advice...maybe something is relevent..