Go straight to Maughans, there are other engineers, and get O/S spindle you need instead of VOC spares standard O/S offered. Best advice i got was from Peter Holmes, make up go / no go piece as guide for machine shop then no misunderstandings in measurements. If spindle is loose invariably that will mean case has wallowed out to lesser or greater degree so early attention is best. Also when fitting steady plate ensure it pulls down evenly, ie doesn't rock, fit, meaasue with feeler gauges, strip, repeat.
At least this has been my experience.