for a 12'x12' (or 9') I would just DIY it. It really wouldn't be difficult. 12' boards can be purchased at big box hardware stores. Frame out some walls. Tack up some wire and cover it with bird netting (steal cable makes great support for netting). You would be well under $1000.I have assembled a coop from a kit with a 4'x7' run surrounding it. I am basically looking to add a supplementary run area approx. 12'x12' or 12'x9' ... I have 4 pullets that will eventually be pretty large sized birds. I would like to spoil them if possible within my $1000 budget.