Single Rear Side Windows in 110

Iam fed up with the back of the car smelling like a wet dog due to sliding windows leaking so I am looking at single pain option. Has anyone done this and are the any down sides apart from not being able to open them. I have only managed to find Masai so far that offer this does anyone know of any others that may be cheaper?

This DIY approach from another forum looks good.

HERE

Thanks for that, I'll have a look around and see if I can find someone who will supply glass as it's not always easy in rural Herefordshire! but it's a good option and cheap..