I just checked sold item prices for them. $49.99, $75 and an unknown number from a $200 ask. So I am going to guess the calipers and levers together are worth just shy of $100?
Pastor Bob can likely tell you whether or not to descend a mountain via his experience with the repadded DA version.
if you want larger clearance, the Shimano Tourney/DuraAce centerpulls are fine choices.
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1987 Crest Cannondale, 1987 Basso Gap, 1992 Rossin Performance EL, 1990ish Van Tuyl, 1985 Trek 670, 2003 Pinarello Surprise, 1990ish MBK Atlantique, 1987 Peugeot Competition, 1987 Nishiki Tri-A, 1981 Faggin, 1996 Cannondale M500, 1984 Mercian, 1982 AD SuperLeicht, 1985 Massi (model unknown), 1988 Daccordi Griffe , 1989 Fauxsin MTB, 1981 Ciocc Mockba, 1992 Bianchi Giro, 1977 Colnago Super, 1971 Raleigh International, 1998 Corratec Ap & Dun, 1991 Peugeot Slimestone