I recommend saving the greenhouse for the LEB27. A moose could stand pissing on Monk continuously from Jule to September and it still wouldn't rot. Besides it can grow ridiculously big.
One thing though: Be very carefull about letting the Danes get rootbound before transplant, that will often trigger flower and they don't turn back, or if they do they never recover.
What kind of pot are you planning for the Leb27? 20-25 liters should be enough to make them grow big (you've seen the pics from the HFH site, they can get real big if left in open ground) but still force them to finish 2+ weeks ahead of schedule.
Probably mentioned it in two posts and one PM already, but do try to make sexytime between Monk and Leb, and if you have some autos lurking around try some mixes with them as well.