If nothing else you started off a very positive trend of doing a pre-proposal post to first gauge interest and see what others have to offer you outside of discord. Well done, now the rest is gravy.
I prefer the 1 DEC minimum to be implemented first rather than card level minimums, then the market can simply work it out. You have the problem of say, perhaps, tough level 1 rares, epics or legendaries. That's why in a nutshell I prefer the 1 DEC rental minimum to let the market decide how much a card should be leveled up to be rented and perhaps just as important to make transactions in the rental market a minimum to avoid a spring to the bottom including these level 1 spam rentals.