Man that sucks. Trim the left side so it matches the top and then add strip to the right so they match. Reinforce from the inside for strength.
Sounds like a cunning plan - I'll keep you posted on my progress...
One of the reasons I would recommend using the matt white primer Tom, is not only can it be buffed up to a gloss or semi-gloss sheen where required, but it can also be locally weathered by rubbing in graphite and weathering powders to break up the uniformity. Much easier than spraying tints of white I find, especially for 1960s white Finningley Vulcans which attracted all sorts of brownish and greyish discolouration when subjected to the carried smoke and grime from what used to be industrial heartlands of Sheffield and Scunthorpe.
You might also like to look at this Flickr collection which from about halfway down has a fairly comprehensive, hi-res B-52H walkaround, including flaps and flapwells, outriggers and their bays and other bits and pieces you could find useful..
Those pictures are fantastic - thanks for sharing. I hadn't realised that the out-rigger bays were zinc-chromate as presumed they'd be white like the main gear bays.
I'm amazed at how 'new' the pictures make the airframe look - it looks pristine and as if it's just rolled off of the production line and not having been in service for 50+ years.