Now, do you remember where the shops were? Go to each of them, with EDGAR AS YOUR LEAD PARTY MEMBER to get a complete 50% discount; the above prices are without a discount, so cut them in half to find what it is with a discount. I seriously recommend buying the Flash and Drill tools, then spending the rest on Hi-Potions and whatever else you want. Afterwards, go speak with the man in the engine room (staircase downstairs from the entrance) to head to Kohlingen.