Thanks Ant, I really appreciate your support with this one, you can’t beat experience and knowledge, you are bang on, I’ve estimated approx 11/12 June, swarm took residence in swarm trap on the 26th,You could try that. I've found they can be tricky to cut out without damaging them and can also be prone to chilling through the whole process (especially around the age that they are). Also, finding and killing a queen in a very defensive colony and adding in queen cells to it it is a bit of a daunting prospect.
Having said this, you have the perfect number of colonies to experiment in the way you propose. For me, learning and experimentation is a significant part of enjoying beekeeping. Down the track, with more colonies, you might make different decisions.
One thing you've done already is establish the age of that queen cell and therefore can more successfully work out when the best time might be to put in a queen excluder or cut out and move cells. Have a look at the diagram in this link (scroll down through it a bit). I reckon you are on about day 10 when you opened that one up? What do you think?
https://theapiarist.org/queen-cells-dont-panic/
I am definitely going to reduce the double brood and us EQC from nuc, fingers crossed they don’t rip down the QC I introduce, I will give queen a couple of days grace, if they are still as aggressive, you are so right the thought of killing a queen is daunting, , especially when I’d just bought two in, I will snuff her out, and use another one of the EQCs. I’ve lost another day of my life faffing lol I’ve only got 13 hives how these manage 100 plus hives I’ve no idea thanks again for your help and support