
I was trying to ignore it but then I came to add the steam heat pipe and it jutted out beyond the footplate rather than being in shadow.
The tough bit is going to be putting it all back together!
Nah it won't.
The footplate has a half etch edge already there, presumably that's where the original valance sat, you'll want to avoid the step in thickness if you can but I suspect you might not be so lucky as the real engine has quite inset valances.
None the less, you only need two strips of brass, say 3.0 x 0.5mm and add these to the lower side of the footplate for the full length, on the 'INSIDE' of where your new valance is going to go, these will form a nice straight edge for you to butt up your re-positioned valance, they will also add strength to the joint.
I suspect to get the required depth then the third option is going to be the one you have to choose and in which case, as JB notes, the rivets will not match.
MD