Mr, Butley, I am guessing you wish to graft only a few queens, like max 10 larva. You will make mistakes your first attempt to graft however you will improve with each attempt. Start with 10 each day old larva. You will be doing good if 5 are made into queen cells.
I would start with a full size nuc and since you are only grafting a few larva, a few cells, the nuc can be both a starter hive and finisher hive. For small scale only! Normal is use separate starter and finisher hives or single large hive with a cloak board. Your queen hatch in 16 days but remember you started with a 4 day old egg/larva so figure 12 days from graft date to hatch.
Newly capped queen cells are very delicate, do not touch the newly capped cells. About day 14 you can move the queen cells but remember to keep in vertical position if transporting. Do not lay the qc on its side.
Once a qc is capped you should cage to protect the qc and prevent the hatching queens from killing other queens. I use nicot hair roller cages.
When making the nuc, be sure there is no queen or the bees will not make queen cells. There must be plenty of food frames, pollen, nectar or honey in the nuc. Pollen is a must. I would place the nuc in backyard to prevent robbing by the resource hive.
All Good Things
HP has advised on the mating nucs.