Sir Peach Gets Pitted in Camelot Mystery Cache

Many a days have the King and Queen of Camelot been befuddled and bewildered by the antics of Sir Peach.

You will need the corresponding letter number from selected peach107 caches which were adopted by the Shedlers, most are now archived, there is one left in this list. In other words, if cache PAF had B=0, then B=0 is the answer for this puzzle.

D=Virtually Famous #4, GC262YJ.

C=Boys of Summer, GC23RZQ.

E-4=Virtually Famous? #3(B), GC4EXXX.

B=3 Gangs, GC197BA.

A=Logistics & Luck #2, GC17VEH.

X=All My Friends, GC18N7Z.

WP1 is a typical peach hide, so sort of is the final. BONUS LOG for telling us what else is relative about this cache.