Getting away from the thread drift, here's a list of actionable items for you.
It does look like the aluminum tubing cracked and the brake fluid caught on fire. Shimmying gear legs (the reason stiffeners were installed) and aluminum brake tubing is not a good combination. Call up Tom Swearengen and have him make you new brake hoses.
Make sure the masters don't stick, get rebuild kits for them to replace all the seals/pistons. Also install the above suggested return springs. Matco doesn't approve of those, because they score the shaft, but they work great, I have them on my plane.
Use Viton orings (McMaster Carr) in the calipers, and Royco 782 fluid. Those two bring up the heat tolerance of your brake system from around 250F to 400F+.
Definitely swap the fittings around on the calipers. The bleeder valve should be on the bottom. Refill with fluid from the bottom up (pressurized garden sprayer bottle works well). Put a fitting and clear hose in the top end of the system and keep pushing up the fluid until you see no air bubbles in the hose, while slightly tapping the brake pedals to release air bubbles. If you leave any air in the brake fluid it expands when hot and they brakes will drag.
New wheel pants are a pain to install, mostly the alignment is what takes a bunch of time, but you can fly the plane without them until you get them done.
Palm City, FL
2014 RV-10, N311LZ - 550 hrs