I had a pair of Browning Waterproof hunting boots that were, many years ago, my favorites. I had a our local boot cobbler guru resole them with climbing rubber soles. Worked great for 6 months and then on a mission in the middle of nowhere one of the soles came off. Made for an interesting trip back to the CP. I would not go with a glued on anything if it were me.
Rebuildable brings to mind the American made Danners, White's, Nicks, Hawthornes, Drews. These are mostly wildland firefighter boots that are custom or semi-custom and can be fully rebuilt 3 to 4 times if you take care of them. They are incredible boots. I have done a little fire line medical work and I don't think there is anybody on the planet that works harder, in all terrain, than those kids on the line. Take a look at the White's Dri-foot in an 8inch. You can get it in different colors, insulated or non. It is a hell of a boot. About $400ish.
Having said that, I am hearing from some of my fire guys that they are seeing more Scarpa-Liskhams, SL M3, Escapes, and La Sportivas-Galcier EVOs, Makalus, Glaciers on the line.
That Asolo TPS 520 is a great boot, if it fits, put in a set of Superfeet Green footbeds for arch support and go with it. They are great boots and will last twice as long as the Pronghorns. You might consider a wide though, an E equivalant not a EE. But they are not rebuildable.
If you don't like any of those look at the Lowa Tibet GTX or Baffins, they a come in a wide.
Anyway, take a look at those and we'll talk some more.
Wade
www.HardcoreOutdoor.com