Replying to Every ones summer set up

Ive got a winter setup.   6' high ramp.  I build my own tranny and lip out of snow.  Was wondering  how long I should build my transition and lip.  I saw a website of lips ( for skateboards I think) but cant find it...I think it also had some boxes.  If any one knows the address that would be sweet.   I've got a couple of bucks so I think Im going to get permasnow.

any ideas, suggestions, pix and how you like your set up.  Thanks Much