the marketboard of this game is very archaic indeed.

The game's economy is in ruins as it's one undercut on top of another. I barely put out a food yesterday to sell at 10k, and the price dropped to 5k.

Furthermore, the impossibility of buying just the amount you need bothers me. Sometimes I want to buy a small amount of items, but there are only bots selling stacks of 99. I could buy and resell, but I know that if I buy today for 5k each item, in 2 hours the price will be 1k each, and I will only have loss, if I manage to sell.

I particularly like your solution. Bots would clearly sell to people placing orders, as they don't care about value, and normal people would sell in the traditional way. Of course, there would still be bots undercutting prices, but I believe it would be a relief.