Any smallest possible amount; it can be even as low as $1 worth BTC.

If you dont have BTC I would suggest you exchanging your alts for BTC using ChangeNOW, that's very cost-effective. And first create standard BTC account(in Electrum) if you want to exchange with ChangeNOW, then transfer the fund from standard to Multisig, then using Multusig perform a transaction required for this Task.

Thank you.