I was finishing work on my next map when I had some hard drive problems and had to wipe and restore. My own fault- I backed up the bsp file, but not the original ones for hammer.

I've heard of ways to decompile bsp's, but there are multiple, and I'm not sure which would work best for portal 2, and hopefully with the least chance I'll get a bugged product from the process. It would save alot of time rather than doing the entire thing from scratch. Any suggestions on how to best go about this would be greatly appreciated.

Edit: http://ata4.info/bspsrc/