Replacing Spider springs

[Simon Body <body@domain.elided>]

Greetings

I've recently been bothered by the sump guard hitting relatively minor 
bumps. Inflating the tires helped! The engine mounts are fine.
However while changing the front bushings and idler arm I looked at the 
spring lengths and it is possible that the PO installed "performance" 
springs, as the lengths are less than 8 inches. One side is also shorter 
than the other by almost an inch. Alternatively, they are just worn out, 
although I understand that is rare on Spiders.
So I bought new front springs and plan to install them. I don't have the 
approved Spider tool for spring replacement, nor does the local club. Is it 
possible to do this with a carefully positioned jack and car supports or 
shall I get the local shop to do it?
Many thanks

Simon Body
--
to be removed from alfa, see /bin/digest-subs.cgi
or email "unsubscribe alfa" to majordomo@domain.elided