My beater looks like that bike.Same tan tape with Shimano non-Sti brakes. The things to sweat are rims, bars, tires, and the saddle. Make sure the rims are tough enough. Typically that means a rim over 500 grams, like the A719. Bars are personal preference, I really like Ritchey BioMax. Grab a few and see what you like. Tire choice depends a lot on what your area is like, and the weight fully loaded. Hard to go wrong with a quality brand. Shwalbe Marathon is great. Conti Top Tourer is very good.For saddles, I like the Brooks B17, but saddle choice is very personal.
I'd go with Mtn bike pedals. If something happens and you have to walk a few miles, you don't want to do it in road shoes. Of course, you could pack sneakers... One thing I have noticed is that durability drops as the number of speeds go up. That bike built as a 7 speed is dirt cheap.