Actually, I reached out to H Lloyd Cycles and while he didn't have the Nishiki decals/stickers on his website at that time, I was told they did offer them, and they put them up on their website (and on eBay) shortly thereafter. While H Lloyd didn't have all of the graphics I was looking for, they has most of what I needed. This certainly shows the value in directly contacting potential vendors, as suggested in a previous post.

For the other lettering, I found a great vendor that does small vinyl lettering stickers/decals. Amusingly enough: www.smalllettering.com

The folks at Small Lettering don't have bicycle decals per se, but what I needed matched up to one of the fonts & colors they have available. Their quality is quite good, prices are great, communication is good (they contacted me to confirm the sizing) and their turn-around time is short. Very highly recommended.