Discussion Board Forum for Vinyl Windows

It's framed with 2x3's but so is my house oddly enough. A regular replacement window *should* work but it will have to be a custom size.

Kinro windows seem to be the most popular brand for mobile homes but I'm told there are none available anywhere. Are they out of business? I'm renovating a mobile home and the windows must be replaced. Do I have any options here? Are some other brands available?