I'm on level 19 and it takes me a really long time to collect enough parts to upgrade anything. It takes a long time to earn enough coins to buy the next ingredient, recipe, stove, table, counter etc. Is there any way to make the guy with parts come more often? I feel like the only way to get ahead is to have more capacity but it's nearly impossible to do. I don't mind a challenge, but this game is going at a snail's pace just trying to get anything done.