This kind of question requires major thought as I am stumped - there are a zillion great psych/garage 45's worth a mention. My memory is a bit hazy but the Viceroys Five Steps To Hell 45 (I think released in 1967) is on Psychedelic Crown Jewels? If it is....that is one hell of a song - Stunning,they simply don't make music like that anymore. I believe that group released a handful of 45's and the above mentioned song was the group's last hurrah. Most of these singles you speak of are old and difficult to track down (I've heard them all though and they are great) but here are similar discs (there are alot of moody psych 45's - an endless amount)...maybe you know them already but what the hell, just brainstorming over here:
The JuJus - Sometime Or Other - 1967 (unreleased 3rd single at the time)
The Painted Ship - Frustration - 1967
The Dirty Filthy Mud - Forest of Black - 1968
The Nightshadows - So Much (the psychedelic version from 1967 which is on the Square Root of 2 lp)
Mock Duck - Do Re Mi - 1968
The Purple Canteen - Brains In My Feet - 1968
Les Sinners - Don't You Run Away - From the Vox Populi album which comes in both english and french - 1968
Unrelated Segments - all three 45's.
Instant Orange - Plight of Mary Celeste - 1975 - group started out in 1968 releasing 45's, this sounds like it's from 1968 though, amazing track from an ep the band released.
The Mind's Eye - Help, I'm Lost - 1967
The Quests - I'm Tempted - this 1966 Fenton 45 isn't really psych but it's great with plenty of fuzz.
The Plagues - I've Been Through It Before - 1966 (Fenton 45)
Peabody Company - Tobacco Road - Amazing psych version of this well traveled song from Fist Full of Fuzz. Anything this band recorded is supposedly good thought they never released a 45 but have an album's worth of great material being prepared for release soon.
The Rising Storm - Frozen Laughter - 1966/1967 Calm Before lp
The Index - The Index - 1968 lp
The Savages - Live n Wild - 1966 lp
All Of Thus - All Of Thus lp - a local NY band lp that has a moody Zombies/Byrds feel.
It's All Meat lp - 1970
Kenny and the Kasuals - two lps of 45's
The Contents Are - Through You - 1967 - moody garage folk-rock private press lp

