Riccar
Riccar/Simplicity have a vacuum attachment accessory kit. It has a 12 foot hose.
It's also has accessories everything less than you can get a regular kirby hose.
I've attached a link to one for sale.
I've converted a couple of these to kirby hours.
[URL unfurl="true"]https://www.ebay.com/itm/145513558461?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=eDBGaTdcTne&sssrc=4429486&ssuid=LiSVRhZiQfi&var=&widget_ver=artemis&media=COPY[/URL]