With thanks again to my on-base benefactor Abel Magwitch, I've got two boxes of MREs coming, along with a "map pen" for measuring distances on a map. I've also got one final round of things to buy here in Korea, and those things are:
1. a "footprint" for my bivy sack (I might make one if I can't find a cheap one to buy)
2. a standard first-aid kit, which the local Costco sells (last I checked, anyway)
3. a portable cell-phone charger and 2 cell batteries
4. a hanging scale for luggage
5. a set of reflector strips for safety
I'll stroll through the Jongno/Euljiro districts to see about that footprint. Camp stores in Korea might or might not sell footprints separately, but everything here is far more expensive than in the States. I've seen some sites offering tutorials on DIY footprints, so I might just go that route, or I might simply buy some 6-mil plastic sheeting and cut it to size.
The first-aid kit should be easy to obtain: that's a Costco purchase, unless the kits have rotated out of stock for the season. I don't think they'll have disappeared, though: I've seen trekking poles on the warehouse shelves month after month, regardless of the season, and I think the shelf-logic will extend to other camping/outdoors-related items.
The cell batteries and portable charger will be a Yongsan Jeonja Land purchase. There are apparently service centers, close to where I live, that sell the phone batteries, but I suspect Jeonja Land will be cheaper overall, especially if I buy two batteries plus the charger from the same seller. When you buy several items, negotiating the price downward is a bit easier.
I'm taking a gamble with the hanging scale, as I'm assuming that that scale store—the one that was closed when I learned about it last time—actually has what I'm looking for. I may end up walking away with an analog version of the scale.
Then there are the reflector strips. Where to buy those...? Probably the Jongno/Euljiro area again, but also any of the big stores that have a sports/outdoors section in them: E-Mart, Home Plus, etc. I won't need the strips for walking at night, although nighttime walks are possible if things go terribly awry. No, the reflector strips are more to protect myself whenever I'm inside a tunnel, as I know will happen at several points throughout the walk: some of these tunnels will be bike-only, which isn't so bad, but other tunnels will have cars going through them, and I'm not sure whether those tunnels will also have pedestrian walkways. Here's hoping they do. Or, hey: if a place is selling those nifty reflector triangles, I might slap one or more on my backpack and wear another one on my front, hanging it from a cord like a rapper with his obnoxious bling. Please don't mow me down.
I'll be engaging in this final paroxysm of shopping tomorrow, i.e., Saturday. If I do get the hanging scale, I'll be using it to weigh my fully prepped backpack, at which point I'll have a better idea as to what can stay on the walk and what must go. I'm shooting for a total pack weight of 35 pounds (15.9 kg), not including water, which can be up to another 7 or so pounds (my CamelBak ripoff holds 3.5 liters). Even with the near-gallon of water, the encumbrance is going to be much lighter than the 60 pounds (27.2 kg) I'd carried on my big walk—a reflection of hard lessons learned on the road in 2008.