I am easy but realistically you are either going o miss one of these or not get any decent classic riding in.
Possible option 1
Pitch at Squires (you know that pitching Thursday is not a problem).
Ride down to broughton, stay at Daughters
If people are going to the RD one, arrange to met there Friday lunch so a little ride North
Picking up any stragglers, off to Squires with enough light for me to pitch up
Enjoy the rest of the weekend
Closer to home when you pack up on the Sunday
You can honestly say you went by bike to both over one weekend.
Provisionally speaking, I can meet you Leicester way. Ride up to the RD one together, have a brew if there is anything going on, on the Friday then ride up to Squires together then, as you head North on Sunday, I can ride South.
Option 2
You Pitch at Squires I meet you there on Friday night
We leave there Saturday and ride to the RD one.
Saturday evening I shoot home and you go off to see your Daughter
Sunday you ride back to Squires on your own to pick up the Landie.
Never been to the Derby one but it is a short hop for me (20 minutes tops). Looks like the Fizzie one has a lot of different '70's and '80's mix.