Tonearm for SH-B19 (BL-1010?


As my Dragon CT is being repaired, I bought a Sound House SH-B19 (Micro Seiki upgraded BL-101). It is sounding great with stock MA-505 MKIII and stock wires with a AC-2. I will be installing a UNIverse II.

Having the never ending upgrade itch, what would be a good tonearm upgrade in the $1-3k used market? Assuming the Micro Seiki armboards fit:
- Origin Live Enterprice C (A1201 armboard. I seem to like this one. Very similar looking to arm in SH-B19 now.)
- Dynavector dv-507 mk II (Which armboard? Hard to find in used market.)
- SME V
- Graham Phantom II, 2.2
- Origin Live Conqueror MK3C
- Micro Seiki MAX-237, MA-808X
- Abis SA-1.2

I don't think double tower arms (TriPlanar, Reed, Schroeder Ref) will fit without removing the dust cover.
vernonwtx
Yes, fixed mounting hole, 222mm PS, 28mm hole.
Reed swing would hit dust cover, and maybe one mounting hole over 28mm hole.
Yes, fixed mounting hole, 222mm PS, 28mm hole.

Fidelity-Research FR-64fx
PS: 230mm
Mounting hole: 31mm

Same for IKEDA IT-345