i find them wherever and on ebay (to be careful of copies) and from other collectors

i have
blood bath
blood feast
bloody moon
blood rites
cannibal holocaust
cannibal ferox
cannibal apocalypse
devil hunter
dont go in the woods alone
evilspeak
faces of death
fight for your life
gestapos last orgy
house by the cemetery
house on the edge of the park
i spit on your grave
madhouse
mardi gras massacre
night of the bloody apes
night of the demon
tenebrae
zombie flesheaters

i may be missing one or two