Replacing smooth roof skin, with cab light roof skin.

[01chevduramax]

I've got a lot of work done on my truck lately. I have the duramax in and test run. I'm about to tear it all back down for dustless blasting, and paint. The one piece missing on this truck....CAB LIGHTS!!!

I found a cab locally that is pretty wasted down low. But it has the cab lights. And they are nice. Im seriously considering a roof skin swap. Here is what I'm thinking:

1. Carefully cut the drip rails off.
2. Cut spot Welds out on roof skin.
3. Cut the cab off just behind the rear seam.
4. Cut those spot Welds out.
5. Should be nothing but a skin left!

On the existing cab:

1. Cut the roof skin off an inch or so from seams.
2. Cut spot Welds by drip rails and rear seam.
3. Either weld donor skin on, or use panel adhesive???

At that point I'd have the dustless blasting show take over.

Does anyone have any input here? A trick? Tell me DONT TRY IT!!
The truck is orange/white. 10" suspension lift. Long bed. 42" swampers. I think I'll regret painting it without doing this.