Diamonds Are Forever Moon Buggy

Very rough sketch in LDraw of the moon buggy from diamonds are forever. Thought it suited building in lego at minifig scale - a figure should fit in it. Unfortunately I'm not very skilled in using LDraw so it has gaps inappropriate and misaligned pieces etc. Think the grabber arms (and possibly other bits) are obsolete parts. Might try and build in real lego and/or finesse it in LDraw. But the idea is there at least ;)