Hi. I was just listening to your posting on this rather intriguing subject.
I have some background in ornamental turning and decorative works, so routing spindles is one of those jobs.
Thanks for the link to your lathe. this helps a lot.
Sadly, your lathe won't handle lathe routing as the lathe is too fast on it's lowest speed. You need to have a lathe which can run betwen 40 and 60 rpm for cutting. also attachments for routing on the lathe are specialist products designed for high spec lathes.
Trend used to make the router lathe which was a nice product.
If you're serious about lathe routing and want to do decorative posts. there are two systems available as direct router lathes. One is from Killinger in Germany. For that kind of product, please contact Phil Irons Woodturning and speak to phil. please be aware, the price is in the £1000 range or so. The other is a complete routing system which allows you to manufacture joints, etc as well as spindle routing.
Sorry, I can't think of the manufacturer off hand but there is again a UK importer for this.
Hope this helps.
lew