getting the right springs

can anyone please help advise me find the right
springs for my '69 nova? i talked to a couple springs
shops around here, but they were both extremely rude
and didn't like me asking questions.

what i am looking for are a set of multileafs for my
originally monoleaf car. i have a set of multileafs on
right now, and i want to stay multileaf because it's
just so much more comfortable than my monoleafs. the
reason i want to replace them is because they are
already sagging, and if i installed the traction bars
now, there would be less than 3" of clearance - the
spring sits dead flat when the car is empty. now, why
don't i re-arch it you ask? well, the spring shops
here (the only ones within reasonable drive) are
charging me $78 per spring to rearch them... i figured
that at that price, i might as well get new ones.
that, and i could probably sell the old ones to
someone else.

what i need in this spring, is the ability to clear a
26" tall tire for the track, and enough spring rate to
hold weight and hook well. i am also going to be
running traction bars with these as mentioned above,
so i hope i get enough ground clearance. i figure if i
ever step up to 28" tires i can always run a slightly
longer shackle to raise it up a little more.

so does anyone have any suggestions/opinions? any
sources for springs online?

thanks!