NFTs as collateral, I highly doubt any one will fill your offer, I personally wouldn't if I was in a position to, this is because NFTs are literally worthless, coupled with the fact they are not as liquid as normal crypto coins and tokens, and besides, is there any NFT currently in the market that is truly worth 0. 01 btc except the popular Bored Ape?, which I even read in the news recently that it has lost over 50 percent of it value in recent times.
My advice is, use any crypto that is listed in top 50s on coinmarketcap, listed on binance or any or several other big exchanges, coin or token worth in usdt must be more than what 0.01 btc will worth in usdt at the time of filling the load.