by droopsnoot » Sun Nov 17, 2013 7:43 pm
Inner wings crop up, as do the old inner wing repair panels either for the hinge area, or a little further forward. There's a supplier in Australia that does some Holden Torana floor pan repair sections which are pretty much the same as HC, but you have shipping and potentially VAT/Duty on top of the price. I've never seen a new inner sill, but I do know someone who knew someone that had some. Sounded expensive, though.
Generally the problems in these cars are in pretty much the same places, except in extreme cases, and the repair sections aren't that difficult to make. For example the part of the inner sill that goes is usually the section below the floor, and that's a flat section with an angle at the bottom where it joins to the outer sill. Likewise inner wings usually go at the hinge, or at the top, which are not terrible places to repair.
Post some photos of the areas you need to repair, it might be that people have parts of old panels that can be used. For example I've got some bits of inner wing that are usable, but they're not the complete panel.