Correct, beige interior and no armrests unless optioned. Being buckets the seats may be the 2-tone Kingswood (chamois) vinyl but the door trims and other bits of soft vinyl will be beige. Just look in an early HJ parts catalogue and see which trim pieces are the same part number as Kingswood and which are unique to Holden and Belmont. I have a little bit of investigation to do with pre 8/75 HJ Holden and Belmont with 60V trim hence I used italics for the word may above.