What's always available?

[Miraglyth]

So between the game's refusal to allow item stacking and my refusal to leave items unbought in case their shops change inventory or get destroyed, my storage's 16 pages are completely full of old equipment and food, clothes and stat boosters by the time I reach Korat.

Keeping spoilers to a minimum, are there any shops that become inaccessible or stop celling certain items, be they early foods or equipment, or clothes?

[SilentCaay]

I haven't completely beaten the game yet but so far the Chartreaux shops update their inventory to include new items from other towns after you visit them so you should be able to get anything from there. There is one item that's sort of a secret and you have to go at just the right time in order to get it. You need to visit the Chartreaux weapon shop at night to buy it. Other than that, there hasn't been anything to my knowledge that has stopped being available. You must be grinding for cash like crazy, though, to be buying everything up on your first pass =P

[Miraglyth]

I've heard about that particular item so I'll be ready for that, but its mention doesn't reassure me that the last day won't see access to at least one shop or town revoked so the completionist in me is afraid to play on >.<

I've barely hit the level cap from marks of heroism during grinding and I've been able to afford everything so far. I think Korat'll change that though, since its wares are crazy pricey.