🚀 go-pugleaf

I recently got a cheap Memorex keyboard (the TS1100 "spill proof" one
they sell at CompUSA) to replace my aging $8 Memorex that I've used
since 1999 (since some of its keys are starting to stick).  After
taking a serious whooping on online D3, I went to practice a little in
single-player, and noticed that some trichords didn't work.  So I
pulled out my old Mitsumi board and found no trouble doing the same
moves there.

I'd get another Mitsumi, but I don't like the smaller backspace key (I
like the backslash above Enter, to the right of the square bracket). 
Anyone have any recommendations for an inexpensive board with that
layout that handles trichords okay?  Specifically, the one that killed
me was "S", "4", and "3" on the keypad simultaneously--usually the "4"
doesn't register and I don't turn left like I want to.

TIA.

P.S.  I hate F-Lock, and I hate Microsoft's new vertical cursor
control key layout too.