Save it for the coming-soon SLO! (PPCB Lead Solder Overdrive)
First picks:
UNICAB was my first choice, though.
6-BAND EQ
ORGAN DONOR
LOW TIDE MINI
Delays:
DARK RIFT
DMD-2
Reverb:
DEFLECTOR
RADIUM (5&SW)
3VERB (5&SW)
Comp:
DELEGATE
THUMBSUCKER (5 knobs and sw)
Modulation:
SEA HORSE
PITCHWITCH
TREMBLING LOON
Pitch
CAPTAIN BIT
Preamps:
BOOGIE MONSTER
M800
MOFETTA
DECADENCE (5&sw)
PLAID
Dirt
BLUE SHOE GAI PAN
BLUES CAPTAIN OD
CHELA OD
COMPLEX OD
CRUNCH CAP'N DLX (couple extra sw-holes to drill)
DEATH CAP
DINGO DIST
DIRTY SANCHEZ (+sw)
FROST Dr
FUSCHIA
FUZZ CAP'n
FUZZ FOUNDRY DLX (+sw)
GERKIN (make one of the internal trimmers ext)
KICKSTART (5+mod)
MALACHITE
NARCISSUS
NUCLEUS
NUTTY (+mod/boost/etc)
PARAGON MINI
PARENTHESES MINI
SEA MONK OD
THERMIONIC DIST
THUNDER PIPE FUZZ
TWEED MAN
(some of the above suggestions may be 5knobs+sw)
Other (may not be appropriate-fit):
TERRARIUM (Electrosmith Daisy, additional drilling for switches required)
HAARP — 5&SW
D3LAY — 5&SW
Module8 — 5&Rotary
UNISON DOUBLE-TRACKER — 5&SW
Another option, a 4-5 knobber with a mod or two. Doh! Nick beat me to it!