Starting/Using Enterprise Wholesale, Advanced Inventory & Advanced Pricing. I have thousands of items, many vendors, customers on contract pricing tiers. My items may be bought in a case, pack, or each and I may have multiple vendors for one item. These items may be sold in an each, a case, a pack, or they may not have all UOM options for sales. We must have the inventory account for all UOMs - a case may sometimes be sold in eaches, or eaches may be sold as a case. We need inventory to reflect if we have enough for a pack, a case, or not so setting up cases and eaches as different items would not work. I am having to alter my way of thinking, as my current/soon-to-be-ex-system does not have UOM "sets", but any UOM may be applied to any item and I could override any conversion on a per item basis. 

Example: 
First product: I buy a case of bandages. The case is 24 boxes of 100, 6 inner packs of 4 boxes. I would buy this buy the case of 24, sell as a box of 100 (my base or my each), also sell as a pack of 4 boxes, and also sell as a case of 24. Discounts are offered for buying packs or cases. 
Second product: I also buy another case of 24, tubes of ointment, 2 inner packs of 12, and my base is an each. Am I correct in thinking that though these items both have cases of 24 they need to be each part of separate UOM sets? Maybe I set up one set called "BX/100 PK/4BX CS/24BX", base UOM being the box of 100, pack equals 4 boxes, case equals 24 boxes. Then another UOM set called "EA PK/12EA CS/24EA", base UOM being each, pack of 12 equals 12, and case of 24 equals 24? My box of 100 will not always be a part of a case of 24, or have an inner pack and my case of 24 will not always be a box of 100. I know this will lead to a lot of UOM sets. 
Third product: I buy a case of 24 of an item, but only intend to buy in cases, and always sell as an each. Can I use "EA PK/12EA CS/24EA" and somehow prevent a case of 24 showing as an option for sales? Or should I have another UOM set for "EA/CS24"? (Please note these UOM set names are not necessarily what we would use.)

Additional Info: It may or may not be pertinent to this particular topic/question, but we also would then sell these items to Customer A at one price and Customer B at different pricing. I understand pricing will be set up separately from the inventory, but I wanted to throw that in there in case there were any tips, tricks, or potential complications that were foreseeable from the example given.