Why would you want to illuminate the exhaust when it looks less than pristine?
Never too old to learn: didn't know here was an MGC; thought it ended with the MGB. Always thought the GT was so much nicer looking than the ordinary rag top. Had thought about one when I got the X1/9 but by then they had adopted the horrid US version black bumpers, as the Fiat did too, eventually...
Was the MGC the one with the big Rover engine, or was that called something else? Of them all, I think I liked the MGA best. In white.
Hope you're feeling fine now.
Rob C