s10 backhalf

Well i'm picking up a truck for my girlfriend and needless to say the rear is pretty sketchy so i need some dimensions for doing new notches outta 2x3 and backhalf from those back...

heres what i need..(all for making out of 2x3)-angle cut needed for bottom of the front notch -height and length of notch-how far from the gastank x-member front of the notch will be-length from center of the notch back

any help greatly appreciated...figured dimensions would help knock it out faster

I can't really be any help with dimensions but why not just build it to suite your needs? As long as its in the scope of your capabilities and your comfortable doing the work it would probably be easier in the long run. If your going to put in new notches and planned on building new from the notches back anyway, it would only be a few more feet forward of the notches to do an actual backhalf. I don't know what shape the truck is in, what work is done to it, and your capabilites so I am just assuming some things.