I've done the AWD conversion. It requires a lot of cutting & welding & some custom parts. I have pictures on my website, check it out. It took me 2 years and a couple thousand bucks to collect the necessary parts.
The 2.0 is the FS engine, it's even longer than the BP so it'd be a tough fit. The ford Zetec engine should fit though, but the transmission/axle combos required to make either fit start to get really tricky