Moved onto looking at JPMs thru MAME rescaled the Vogue cab, it's apparently right if my measurements are to be believed, though I thought it would be slightly taller than the old Barcrest MPU4s...
Converted Indy, working with various issues: reels wrong (this was expected as I need to do some work there), alpha display reversed (linked to MAME data layout automation work yet to do), main issue is an emulation-related one, get an error after machine has been running for a bit - this'll need fixing in MAME driver. Also, no input mapping yet, as I need to do work to get this new tech mapping across (so playing on the weird keys with MAME window focused).