After all that work on the inner wing, I am now thinking about replacing it with a new heritage panel. The welding has not been great and the surfaces are not really even. A new inner wing is around £200, which is quite a lot, but long term I think it is going to be better. Anyway, thinking about it at the moment.
I understand you do not like it but that area on the inner wing won't be seen on the finished car. Even it is not nice it can be good. A good paintjob started with an epoxy primer will protect it from moisture.
An advice here : put a flashlight behind your welds, and look from the other side if you see the light through the welds. With naked eye you can not see the needle-holes.
The question is do you have more time or more money.
If you have more time go for patching the panels, grinding back the welds. Again and again. As far I can see you will touch almost all area on that car. Be sure that at the end you will learn welding
If you are on a low(er) budget, go for panels that will be seen form outside instead. I see your (outer) wings are scraps already. And the painter will have less work with filler on the new panels.
TMF+ membership is 5 GBP / year and for that MiniSpares will give you 7.5% discount to everything.
Edited by gaspen, 24 October 2021 - 02:10 PM.