Metal Bonding Questions

Im still waiting for warm weather and getting back to the panels and linning them up and then move on to welding and metal bonding.

I know I will spot weld the trunk pan and I may put in some bonding not sure yet.

I need to look at all the panels and look to see what ones I will weld in and what ones I will bond in and spot weld.

I wonder how it will work on these panels-

Wheel housing

Trunk Extensions

Tell me your ideas on these parts?

Im also thinking maybe of bonding in the whole trunk pan if I can. I dont know if it can be done or not?

What about the rear cross member? I think that might be better off welded in but if bonding works just as good why not that to?