Recently picked up what is basically my dream 1st gen this past weekend. A 79 SA rx7 S in none other than spark yellow! All I need now is a CYM FD and a lightning yellow rx8 and I'll have all yellow rx cars lol.
3rd owner (basically 2nd, guy only had it for 2 months), 85k miles, 4 speed manual, completely untouched minus a radio upgrade in the 80's (it's terrible). My plans are to keep it the way Mazda intended it to be from the 70's, with the exception of maintenance upgrades and period correct wheels (I love the waffles but their sooo small.)
Don't have too many pictures of it just yet, but I'll take some soon.