Two main reasons on why you should use zAuctionHouse:
1. zAuctionHouse is well developed with over 400+ updates, see description
2. No DonutSMP setup uses a unknown DonutAuction plugin or recommend it, simply in the description says "Premium plugins - zAucitionHouse"
Now with this plugin, you can use the zAuctionHouse - DonutSMP AuctionHouse configuration you may find in NulledVault
If you can't find a mc-config of DonutSMP AuctionHouse, reply back and I will try nulling it and upload it in NulledVault.