I quite like the idea of going o a 1×10 set up. So, I thought that a relatively cheap option would be just to get a chain guide and see how I get on.
Chain devices are extra dead weight. OK they’re not made of lead but it’s all unnecessary weight
Narrow Wide rings are more effective
You’re going to need to replace front rings at some point so you may as well go NW
Chain devices are now defunct unless you already use a narrow-wide. IME NW rings are more effective at keeping the chain on than just a top guide. If you’re running NW and still losing the chain / want extra security then fair enough get a top device. FWIW I run a NW and top device (e13 XCX, BB mount version) but I’m sure most people will be more than happy with NW.
Clutch mechs are a luxury and IME do more for sound-deadening than chain retention. I.E. They’re nice to have but not necessary. When I’ve left the clutch turned off (accidentally) I haven’t had problems with the chain coming off.