My fee for escrowing will be 0.0005BTC, or 0.8% of the transaction (whichever is greater). Funds will be held in a P2SH nested SegWit address, allowing for lower transaction fees than 'traditional' addresses.
With a fee of $6.699, it is very likely that it will cost you more $ in fees to spend the UTXO than its value (at >300sat/byte; at 100-ish, it would be 1/3 of your fee in transaction fees). You should reconsider going for '0.001' ($13), which is much lower than most escrows anyway.