I was determine to do it myself and not pay to have it done. I figured if I jacked it up, I could order another stock body.
I'll give you some advice, but hopefully someone with more experience can reply. Just keep in mind I did not have the best tools. I made use of what I had.
-Do not use a dremel tool cutting disc. It will melt the plastic. I started off with one, but later on swith to a drill bit.
-Take your time. My buddy (gunsmith) recommended I use tape to outline my original stock then transfer it to the strikeforce for reference.
-Try not to remove too much at one time. Just a little at a time and install parts to see if they fit.
-Purchase some JB Weld

If you make a mistake, you can fill it in and paint it.
Hope this helps