John,
Most hobbiest people can't weld a butt joint or weld that good period.
If they try to weld a partial quarter they may
muck it up.Anybody can learn to bond.
If they want they can smooth and hide the seam inside trunk.
It is up to them how well they want to do the repair.
That is why I like full quarters.
no seam to fill and hide.But there arn't full
1/4's for alot of cars,to difficult to make tooling I guess.
-Jeff