Every new crypto oriented card provider is very welcome, and I wish You a lot of success.
But, there was also a lot of scam projects in the past like HASHCARD https://bitcointalk.org/index.php?topic=3365068.160 or project where card buyers wait almost a year for purchased cards (TENX) and not delivered yet.
If You plan a limited edition of 1000 cards, MC will not issue that without bank support. What is Your supporting bank. It is always good to see a crypto friendly bank.
You said that this is a WORKING PRODUCT, so You can issue a card immediately?