Well I went to a small garden centre today on the off chance they might have some heated propagators and was pleasantly surprised to have a choice of 4 different type!
Ended up with the Botanico one, also picked up some John Innes no.2 for stage 2.
So I have soaked the seeds in weak tea (no milk!!!), rehydrated the coir plugs and planted the seeds and they are now on the window sill in the heated propagator!
I have 3 twilight and 7 prairie fire, lets see how these get on!
And before we go further just wanted to say thanks to everyone for their advice