Being mid to late summer and having small kids that are bursting to get on to the lawn I think roll out is my only option. Being just under 50m2 it's not too bad. I've called Paul munns and they'll deliver for $9 a square meter. Garden grove are around the same price. I grew up and work in Virginia (live in the western suburbs) and there's a turf grower there but he's not too keen to supply direct. I've got trucks so I'd be happy to pick up myself. Oh we'll no biggie.
What irrigation do you use? I was thinking underground irrigation to water the roots directly
