niche items beget niche market considerations. any attempts at inorganically trying to manipulate this with the honor system will simply open up the opportunity for those of us who have wealth to make more of it and better deny those who actually want the items - and this is not specifically done to harm others, but because an opportunity is an opportunity. the best order of business is business as usual (a marketer in a high demand low supply area will happily serve inf and item seekers alike), or make / buy them yourself and donate it to the players you're trying to help. the market as it is now remains in the long run the most effective middle man between those of us trying to make inf and those of us trying to buy items, but this will inevitably lead back to my opening statement - niche items, niche considerations.
the main thing for me here is that regardless of all of this, the game gives plenty of tools to secure the set you need in an ultimately relatively short period of time. sure, it could be faster and cheaper if they were sold more frequently and less involved in rare roulette schemes, but that is also a small reason why we can relatively easily convert into the set on our own.