Bip39 Mnemonic To Seed Default variety of iterations Employed in wallets is 2048. Growing this variety should ensure it is more secure from brute drive attacks, even so you will need to retail store this value. To accessibility your wallet with personalized PBKDF2 it is best to use this script https://www.youtube.com/channel/UCUpxfyTJ0fb78SQ55hU6OCw