My two cents are to use DAO assets to fund/supply the DEX LPs without having to pay any more funds for outside MMs.
My only experience using a CEX to acquire SPS was awful. I felt Cryptodotcom overcharged on its spread and after transfers, it would have been easier and cheaper to do the trades on a DEX. I had been using pancakeswap before this and will continue to do so for as long as there are LPs that provide the service.