monoprice has some very affordable remote screens for under 200 smacker.

A really affordable DIY screen that is less than 30 bucks, is to go with Parkland Duro-therm light panels. Menards has them standing up in the paneling aisle. Home Depot and Lowes may have them as well. They come standard in 4' x 8' sheets, so you would have to trim the length a little to get a 16:9 screen.

48" x 85" or around 99" diagonal. Once you create a nice border around the material, it would look very nice.

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85