You found a great bike. The only thing of its type that is sold currently in the USA is from Rivendell, and is mega-expensive.
The 27 inch tire was the standard road tire in the USA from about 1950 to 1985. About fifty million bikes were sold using those tires, and a couple million of those are still on the road.
Sheldon Brown currently stocks the Pasela TG, the Continental Sport 1000, the Conti Top Touring, the Conti Ultra GatorSkin, and several other models in both 27 1/8th, and the beefier 27 1/4th size (etrto 630-32).
Most large road bike stores stock 27 inch tires, and any good shop will order them (and you can order them yourself from Nashbar.com and Performance.com). The size 27 tires use the standard size inner tubes used for a 700c/28mm tire (be sure to check your rim to see if your rims use the thick Schraeder valves, or thin Presta valves).
Spokes are available at any good bike shop. Touring wheels are very sturdy. with wider rims and 36 or 40 spokes on the rear wheel. If you have your wheels trued by an experienced wheel tech, they will be "good to go" and will hold up to hard touring.
So, get your wheels trued, and a tune-up, and you will be ready to roll. And get a good lock - your bike would be hard to replace.
Last edited by alanbikehouston; 01-07-05 at 11:15 PM.