Hi Kyle,
First thing, take a deep breath. All this can be worked through. Every build has its set of challenges. You will have a few extra due to this being a RHD car, but nothing insurmountable. We all run into certain issues based on what we are trying to create. My suggestion is taking each problem one at a time and thinking through multiple ways to solve it, ask the forum for input as well and at some point you will know when the right approach is found and then implement it.
In my case, if I try to solve all the issues at once it is not fun nor effective. I like focusing on one or two issues at a time, coming up with the solution, implementing it and moving on. Each problem solved is a sense of accomplishment. Part of the enjoyment of building the SLC.
Here are some initial thoughts...
1)when the photos uploaded are rotated. I edit them on my iPad rotate once and save. then rotate them 3 more times and save again. Then when uploading them the orientation is fine.
Here you go....
2)with regard to the fuel tank, can you simply slide it over and run elbows out the back and have the fuel system components outside the fuel area where most people put it? Or, use an in tank fuel pump, which I did(Ken and Johan also) and then you have no reason to have those side bungs and can weld them up. Or, cut open the fuel tank and move the center tube, have a professional welder weld it up. Not a big deal.
3)with regard to brake lines, many builders run the brake lines inside the tub, so if this was going to be built as right hand drive, the brake lines would have been run to the bulkheads inside the car. Many of the build threads on the forum show brake lines inside the footbox. Also, many builders choose to fabricate their own brake lines because they want to route them differently. I plan to use some of what is in the kit, but not all.
4)The tub is just fiberglass, easy to splice it up into sections and re-work it. if you haven’t done fiberglass work, just one more skill set to develop. I am planning to section the tub up so I can remove the fuel tank panel,
Hopes this advise helps.