There seems to be an unlimited number of internal framed back packs out there. And as I renew my interests in backpacking, after an 30some year hiatus, I find that I'm drawn back towards the external style. Hoping there's more carrying comfort in the older style. about all there is out there is the kelty Tioga.... a brand that frankly, I've associated with low quality. I would like to take an externially braced one out on this years section hike. -just to try, not own at this point. Is there an rental option? And what other brands are there in the 55-65 range?