Long time, no see!
You can use the face texture that I whipped up for my Roy. (I'll PM you the link for it in a minute, and the face fixes I did, as it looks like his vertex's face is part of your model.)
Meant to give this to you waaaaaaaaaaaaaay earlier, but I got a little carried away with fixing the faces on BY's RoyV3 model(And X-mas!). I've almost finished my own vertex of a RoyV4. ^_^'''
Anyway, I must bring 3 more things up about the model you've put together...(I know, I'm nitpicky. Heh heh ^_^)
1. His hands.
I would really suggest swapping the hands back to his vertex's, given how notoriously difficult properly rigging fingers is. With the vertex's hands, they'd already be in the correct position and be in line with Marth's bone structure, and it's not something that many people would notice.
2. His hair.
I know you said you wanted to stick with the vertex's hair, but I personally feel we can aim for a greater level of detail with his Melee hair. Just wanted to bring that back up again.(Or perhaps if someone wanted to rig him for Brawl, the option to use the Melee hair could be negotiated?)
3. The sheathe.
Nothing too big, no worries, it's just that the positioning seems a little off from his Melee model's positioning. I'll use my recent vertex work as a comparison.
Just a little bit of translating it over and down and smidgen. Maybe rotating it.
Don't forget which way the sheathe goes as well. I think it might be on backwards judging by those two previews, but I cannot say.
The more "open" side of the top of the sheathe actually faces away from his back, while the bigger part that on the other side that faces towards Roy has the little metal thingy to keep it attached to his belt.
Eh...I threw together a quick doodle to better show what I mean;(Plus, my vertex of the sheathe can only replicate it so far....It has no where near the amount of vertices to make a very detailed reproduction...)
But yeah. Glad this is running smoothly :3 Also also....I wish I had Skyward Sword ;__;