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One of the most important things to do when conducting business with someone is to set clear expectations. As long as everyone is on the same page as to the specific terms of a transaction, you can set whatever condition you want.
I can say that I have never heard of any auction being held in a way such that bidders state the amount they want to increase the previously high bid, not here or any other auction transaction. The only exception to this is that some websites may offer bidders the ability to quickly create a bid based on the previous high bid, and an increment, however the new total bid will be displayed before the bid is placed. Some of your other requests are also not in line with how business is typically conducted in the forum.
If you wanted to set certain conditions on your auction that are different than how most auctions are handled, that would be totally fine, but only as long as the conditions are disclosed before you receive any offers (bids). Setting unusual conditions may cause some people to not want to bid on your auctions, or maybe your potential customers will be aware of your conditions and decide your conditions are not a bid deal.
I can certainly understand how someone might see some of your requests to not be unreasonable, so if you set some of these conditions in any future auction you hold, perhaps most people will accept your conditions.
I have traded with some people who had strange conditions on doing business before. I found some of the conditions strange, and honestly kinda annoying, but I was aware of them ahead of time, conducted the transaction successfully, and everyone involved was happy.
