Wood Fix

If I were going to use an epoxy filler to repair or recreate missing pieces of wood, what product would be recommended?

When someone answers this I would like to know if the recommended product would be different on wood to be stained and varnished versus wood to be painted. Thanks, Art

Since no one wants to answer the question, I’ve dug into some research.

I’ve found:

West Epoxy
Flex Tex-HV (Advanced Repair Techology) SUPER EXPENSIVE
System Three

Out of all of these, Flex Tex is for architectural repairs (as are most of them), but Abatron Liquid Wood and Wood Restorer is the only product that specifically mentions Automotive Chassis.