Well - been making some progress with the Caster. Yesterday afternoon, I got the diffs built and made a start on the front gearbox and suspension. It's the first time I've ever built diffs from scratch, so there was a bit of tension and trial and error. In the end it's fairly straightforward, but now I've gotten a little further in the build and seeing how hard diff access seems to be, I wish I'd run them in on a drill for a bit and then changed the oil before going further :/ You live and learn.
Anyway, here's the current status - looking good, huh? :