Sadly the Tin Man has passed away. His family made some comments along the line of maybe trying to continue the business in some form, but I don’t think that’s happened yet.
Otto Frei is a seller of jeweler’s tools, and they list an interesting looking lightweigh hose set, but it is R grade, suitable for Acetylene but none of the ‘alt’ fuels like propane or natural gas. Frustrating that they don’t tell you that in the listing, but I asked via email and they confirmed, no propane.
Never tried Smith ultralight hoses myself, but enough people have reported liking them. They are delicate though, so try to suspend them from the ceiling so they come down to the torch and are never ever laying on the ground.
With Tinman or Smith or probably any lightweight hoses, you should use a tougher red/green set from the regulators, with the light hose just for the last little bit to the torch. Don’t walk on them, or drop molten flux on them.
You’ll also probably want to get a kit of splices and crimps so you can repair them when they get leaks, cutting out the part with the hole and splicing the hose back together. When I worked in a shop with many employees who didn’t own the equipment, they were a bit cavalier about it, so we were splicing the damn Tinman hoses all the time. When you own your own, you will probably be more careful, so they might last a good long time.
If you’re outside the US but buying hoses with American-style type A or B threaded fittings, you’ll need to get good at crimping on your own fittings to fit your national standards for torches, regulators, flashback arrestors etc. Can’t help you with that, I’m ignorant about UK or Euro gas-welding equipment. The crimping is easy with the proper tool though. Also, if you have a LWS (local welding store), they can probably crimp them for you. The one time I needed it, they did it properly, while I waited, no appointment necessary, YMMV. I’ve since bought the tool and a box of crimps and other fittings.