WTB: 40-50amp relay for hookin altimaFAN

i looking for a 40-50amp relay for hooking up my altima fan to my 240sx… i already have this relay… im looking for a 2nd one… so i can control the 2 speeds on the fans…

it needs a temp sensor outlet for it for me to tap onto my current temp wire sensor wire on the other relay…

out +positive
negative
temp wire
in +battery