Re: Will this work?
Agreed. With virgins you might expect a maybe 75% mating success, but you'll have to wait 3 weeks to know. Then, the ones that didn't work out need requeening but by this time there are a number of issues that will make requeening tricky.
A mated queen will give more certainty plus get things kicked off straight away.
Just depends if your goal is economy, with some risk attached, (go virgins), or if the cost is less of an issue and you want those nucs firing up straight away, (go mated queens).
Just, since you are paying for the bees you already have an investment. Mated queens are the best way to protect that investment.
"We don't need no education" (Pink Floyd) - Yes you do, you just used a double negative.