Hi Geoff

I can see a couple of ways of doing it, depending on,1) are you able to
take out the tailstock ram, if yes, than you could turn a fitting
wooden shouldered dowel with a large enough hole in it to push your
auger through and insert that in your tailstock.
2) if not you can build a bowl or spindle steady with or without a
fitting collar to feed your auger through.
3) or hold/feed the auger through the headstock and hold the lamp in
the tailstock, again with fitting collars
4) if possible have a hole drilled through the tailstock ram.
And 5) buy a lathe with a hollow tailstock ram,G if you need an
excuse to get another lathe.

http://homepage.mac.com/l.vanderloo/PhotoAlbum25.html

Have fun and take care
Leo Van Der Loo