Here's where I was at. i hadn't checked the dihedral (thanks for pointing that out guys!) and it was pretty flat,as you can see here
Without the availability of a hairdryer, I thought that if I carve out some of the top wing where the wings were joined to the fuselage, thus releasing some of the tension, I might be able to bend the wings into the correct position.
Followed by liberal amounts of gap filling Ca glue and tape and allowed to sit for a couple days.
Now, this is what she looks like. Could possible go more, but this is better than before. There wea still a bit of a gap near the front of the wing root but the gap filling CA and some sanding with a rat tail file helped out.
Looking more closely, this kit definitely has some slight flaws I didn't see before. There is still a slight warp in the port side wing
and a bit of a warp in the body going to starboard. I've tried to show it in these pictures but not sure if it is noticeable. The gaps are much smaller in the wing root though and more manageable.
I've just added some fill and need to sand the front part of the wing roots but I think I can live with this fix.