Bleeder valve for a hydraulic clutch on 2005 Pontiac Sunfire

I own a 2005 Pontiac Sunfire it has been
sitting for almost 2 years I changed out the
hydraulic fluid being drunk got caught up in
the bleeder valve attached to the slave
cylinder I opened up the bleeder valve to
clean it because it was stopping the clutch
Sun moving to Chile going to disassemble
the bleeder valve spring over the pin popped
off and I can't find it I have an extra slave
cylinder spring is not compatible because
it's from a clutch kit bleeder valve installed
in my car the original is spring is too short
should I just remove the transmission and
install slave cylinder with a bleeder valve is
there some place that I can find the spring
and bleeder valve sold separately I've been
looking for 5 days and haven't found
anything yet any help or advice is
appreciated