I wouldn't put the Rally stripes on a regular Malibu, in fact I even prefer the Super Sports without them. Just cherry out the black paint. I would black out the grille like an SS though if it isn't already.
My favorite wheels on the '71-'72's are 15 X 8 Vette Rally's but they look good with almost anything on them. The Malibus usually came with the Camaro style rally wheels in 14 X 6 which are now being reproduced in sizes up to 15 X 8. I'd love to see one with a set of those in 15 X 8 on it. Strictly personal preference though.
Super Sports came standard with bench seats beginning in '68, buckets became a separate option and were also available in the regular Malibu. Small blocks became the base Super Sport motor in '71.