Fuel Pump Rebuild Kit?

Anyone know where to get a fuel pump rebuild kit for the mechanical pump 
on the 948 that does not cost over a hundred bucks?  My fuel pump is 
leaking and I'm not sure from where.  When I restored the car a few 
years ago I used a generic fuel pump rebuild kit that a local parts 
supplier had on the shelf for many years.  It fit perfectly, only cost 
me 10 bucks and has worked fine up to now.  I won't be able to fix the 
leak before Buttonwillow, but it will have to be done anyway.
Mike MacLean
60 Sprite