I have one by Sears (Craftsman), but virtually the identical lift / roller is offered at Harbor Freight.
Particularly for the ST1300, I would NOT recommend it. It is sketchy up in the air, and there's no way I would try to "roll" it anywhere with the bike on it.
I have used a scrap piece of lumber at the back of the engine to make it level, but it's nerve-wracking. Bought it years ago, before I had the ST, and I don't think I've ever actually lifted the 1300 on this thing. It's too scary for me, even if I tied the handlebars to the rafters to help steady it.
Personally, I really like the one
@Mellow bought, and since it's Monday on a Tuesday I can't recall the name... Skylift maybe? That will be my next "lift."
But the difference is low as sub-$200 for these, versus about $800 for Mellow's piece of mechanical art.
Here's Northern Tool & Equipment's version:
Northern Tool

Toolots - which I've never heard of.



And
Craftsman...


