Yep, I ordered the car with A53, and it's on my fender tag and window sticker, and I paid $132.00 for it ($186.30 MSRP).

The
"HIGH PERF. ENG./340 CID/,
DUAL EXHAUSTS & CHROME EXH. TIPS,
H.D. SUSP. PKG., FIRM RIDE SHOCK
ABS., RED STREAK TIRES, FORMULA S
MEDALLION, ENGINE PLAQUE, RADIATOR
GRILLE-BLACK, HD. WHEELS, REAR DECK
APPLIQUE-BLACK."
are all there (except I ordered white streak tires), but no front fender emblems, which were not listed in this A53 description. The 69 sales brochure only said, "...and Formula "S" body trim." So I never knew the emblems were missing until I started recently to restore the car and found out the emblems were for sale.