For around a 22' x 12' (300" or so diagonal), you could get something like a hisense laser c2, its around that 1200-1300 lumen range. That'll set you back about $1.3k. There is also the ultra model, thats a bit pricier at $2k, but it has the lumens and contrast ratio to match the price tag.

On the cheaper side would be hisense with the m2 pro, that can be had for under $1k.

On the higher end, Anker has a great unit called the Nebula, way out of price range at around $2.5k, but ive seen them used/refurb for under $2k.

Cheapest option would probably be the Epson home cinema 1080, for around $750 or so.