He is quite annoyed, then, when he reaches "check boots and equipment, replace missing items" on his checklist and discovers that the hypothesized Outside Market cannot deliver any more Cure Light Wounds potions. There are a sufficiency of Cure Moderate Wounds for immediate tactical use; but the healing-per-gold ratio (*) is better for Light Wounds, and so he likes to use those to recover from battles, when there's no enemy actively fighting.
Still, that does give him an excuse opportunity to try the potion-brewing kit.
...the ingredients for CLW go for how much?
Right, yes, if the potion can't actually be had for any money then sure, the ingredients are suddenly quite valuable. But Abramo is reasonably convinced that Gemyl has not in fact changed his prices in response to the shortage. He would really like to shake down Rathimus for an explanation of how rainbow quartz, at 56 (fifty-six) the piece, and shiny chitin, at 76 (!) (seventy-six, not factorial), plus a fair amount of highly-skilled labour, combine to make a potion that sells for 50 (fifty) gold pieces. Is there a subsidy somewhere? Some ill-considered state intervention diverting the ingredients away from a high-value use not visible to him, into military applications?
...there isn't time. When the war is over he will learn how to disassemble a potion into its component parts, and remake his dynastic wealth on the resulting arbitrage; or at least he will shake this parody of an economy into something resembling sanity. But to sit for a few hours and talk markets and money with Rathimus, as much as he'd enjoy it... is just one more casualty of the war.
(*) As measured, obviously, by how many gulps it takes for fighters to report they're back in shape after a battle, averaged over many battles, rather than by, say, checking the definitely non-diegetic popups.