Ah, compress. Why didn't I see that? Thanks! This works!
ROW = COMPRESS(COMPRESS(ROW, '"'), '00'X);
FDATE = COMPRESS(COMPRESS(FDATE, '"'), '00'X);
NAV_PN = COMPRESS(COMPRESS(NAV_PN, '"'), '00'X);
PDC = COMPRESS(COMPRESS(PDC, '"'), '00'X);
OLDFCST = COMPRESS(COMPRESS(OLDFCST, '"'), '00'X)...