Very interesting and well drafted proposals on which I’ll take some time to dig in. In addition to the balances between the different methods, have you considered the sequence of implementation? For instance, starting with an OTC deal at discount prior to selling PSP on the open market might be less relevant than the other way around.
I would add another method that complements your proposals and which would not put immediate sell pressure on PSP. If we were to implement the Gas Refund Proposal, in particular the NFT Levels for Traders, we could use the revenue of the NFTs sold in ETH to buy CVX. To maximize the revenue in a short period of time, we could for instance sell [1000] Level 4 NFT at [30]% discount (with the proposed [1] ETH tag price) during a limited period of time, generating [700] ETH to buy [75]K CVX at current price.