Dash Repair

So it's raining again here in South Florida and trying to work in the rain without a garage sucks so I figured I play with the dash. Heres the original cavernous mess




And here it is after a lot of Google searching and trial and error. It seems to be coming along. Last dash cost me almost $800, this one so far about $30



Will see what it looks like in a couple of hours, but so far so good!

What are you using to fill the cracks?