Hi Alan
Yes – I've fitted a DRO (from Allendale) to the Y-axis of my VMC and retained a stop system at the same time. Unlike John, I chose to make a new stop bar and stops rather than use the existing one, probably because it matched the one that I fitted to the X-axis.
I've loaded a few photos into an album **LINK** which will hopefully give you some ideas. In loading the album, I noticed that I had already posted some DRO photos which you might also find helpful.
If you decide to adopt a similar approach then I have some drawings in TurboCAD format that I can send you, although if you can't read these then I can probably convert to a PDF for you – please PM me if you need these.
While you are fitting the DRO I would recommend fitting the X-axis scale to the front of the table rather than to the rear so that you can retain full Y-axis travel – I wrote an article for MEW196 showing how I did this and included stops. If you decide to do this you will need to buy a scale smaller than the standard one so as to allow the stops to be included – the article explains.
Whatever you decide to do, good luck and have fun.