The solution is simple. An Avengers 2-pack.
Traditional 70s/80/90s Jack of Hearts, head with the cowl and one without the cowl as he appeared in recent She-Hulk issues.
Miller grey suit Black Widow without the bomber jacket on the new articulated body.
Widow will save a bunch of money and it would be great to have her without he jacket. She's smaller than She-Hulk, which will save money.
Jack and Widow don't necessarily go together, except that they are both Avengers. That's good enough for me.
Jack could also be paired with Wasp, but the addition of her wings may cause the budget to go up in manufacturing.
My perfect pairing, considering budgets would be Jack and Firebird, who also have no connection outside of being Avengers, but that would be two never-been-made-before classic Avengers. My dream come true.