When listing items for max meso...

how much does one need to have so that someone cant buy your item? Do I need only 1 meso or do I have to have 64+ mill to cover the tax that is taken away?

And what about for the mush shops?

It'd be safest to just cover the tax.

1 meso is enough.

I've heard of people buying max meso items from mush shop. Not sure on the specifics of that though