Not that I've done it yet,but have prepared. The list is on the forum. From eBay I got 1 metre 1/8" bore vaccum tube and 1/8" T piece. I got a double vacuum gauge from m&p.
Don't worry, Groundhog. I'm constantly frustrated with a tool or something and then find I've not turned on the power.
The cheap and easy source is to simply get tubing from the local hardware store. If the hardware store local hardware store doesn't have the fittings, then any car parts dealer will.
Bought myself one of these directly from Morgan many years ago. I've used it on my Triumph triples, in-line fours and of course, my Tenere. It's simple to use and due to it's lack of complexity, likely to last a lifetime.