Personally, I'd go for the Dovo, only because the idea of a disposable blade seems...odd to me. I'm sure there are plenty of guys that use the Feathers but in my experience, they tend to used by professional barbers in states with meddling laws regulating barbers (as though a real razor would transmit a disease or some nonsense). That said, the Feathers work just fine but the whole honing and stropping thing, why that's half the fun! If you get a standard razor like the Dovo, have it professionally honed...that's very important.

As far as all the other stuff, if you want to cover all bases, you'll need:
1) A pre-shave oil or balm
2) soap and mug
3) shaving cream (not only as an alternative to soap but to mix with soap)
4) a lather bowl (anything that fits nicely in the hand)
5) Brush and a stand to hold it so it dries properly
6) razor
7) blade lube to keep the razor from rusting
8) after shave balm or liquid
9) strop (don't get an expensive one, he will nick it at first!)

I wouldn't worry about honing until he first learns to shave...and that can take many, many, shaves to get it right. Let a professional hone the blade to start. If you have a local barber supply/knife store, you can get everything you need there. Online, I like The Superior Shave, Classic Shaving, Straight Razor Designs, BullGoose Shaving Supplies, and Whipped Dog (good for inexpensive razors).

Good luck!