Cracked dashboard repair advice?

There are two unsightly open cracks on the vent side of the dash. (close to the windshield) The crack is also warped like a dried up desert lake bed. Does any body know how to fix this without replacing the whole dash? Thanks.

there is a video on youtube that shows the whole process on how to repair the dash. it requires you to use some kind of bondo like stuff…

theres this one but it shows the HOW and not what to use…
http://www.youtube.com/watch?v=_drP8SLwvgo

then theres this. its a little more invlolved and idk if we can even do this on our cars… but its an option
http://www.youtube.com/watch?NR=1&v=ANE0dueAXSI&feature=fvwp

Check your local boneyards, the dash is one of the last things to be pulled, we have 7 G2s at our Picknpull, all but one of them have good dashes, a complete dash, [no radio] is $51.99 a pad, [all parts removed] is $21.99, there is no core charge/deposit. 94