XK 140 OTS fitment of rear wing to B pillar

Hello All, we are having some issues attaching the rear wings to the B pillars on our 1955 xk 140 OTS. Wondering if the factory used lead filler on the outside of front facing piece of the b pillar (where door latch goes)? I dont remeber seeing lead here but it could have come off during media blast. Its a bit messy right now as the some of the vertical wing bolts on the pillar were broken and had to be re-welded on… and we dont really want to use fill here as its a high vibration spot? Any comments on experience with this?
Also wonderiing if anyone has a finished picture of b pillar with door open from an OTS they could post to help?

Thank you!