I've never had much luck with that James, there's a guy down in Florida who still owes me some Piper Cub pictures.
I know this seems to be stuck but there is a method to my madness.
This is the rear end of the firewall where the intercoolers will attach. Several holes will be cut allowing the carb and intercooler ducts as well as electrical conduits. Some notches will be cut out allowing the exhaust ports to poke out. The edge of the brass can be sanded down to catch that slight curvature
The styrene assembly in the top right started out to be just a form for me to work the brass around but upon further review, and frustration, it will be used in conjunction with the brass parts. I was going to use this to attempt to press out the thinner brass to make it look like the pressed Stainless that was used. Can't seem to get the curvature or look right. So now I'm thinking of filling in the corner of the ring with filler and sand it down.
I took a piece of brass I'd been working on and wrapped a brass strip around the circumference and applied heat. Don't laugh at my hold down tool, yes, it's a compass and it worked very well thank you!
I got my lovely Bride to help with the picture taking on this one, you can see how the solder was running into the corner. Using a file to keep things flat and sound.
This is dry fitting on the F4F-3, the firewall and engine mount are installed inside holding the engine mount ring in place. I know it looks a little cockeyed but it's going to work out. Oh, remember all that brass work on the mounts? I cut them out. Too long, too far forward. Reworking that as well.
Here's the dryfit with the intercoolers and rear end of the engine. The wierd looking star looking thing is the part that will be sandwiched between the rear and front of the engine and then it will attach to the ring mount. OK, I can see from here it looks out of whack, I'll see if I can whack it around, seems like there's been a lot of whackin' going around.
And since my Bride had the camera in hand she snapped this, yes there's two sets of reading glasses..it's sad getting old.