Over the years, Linn has different specs so it depends on the vintage and specs.
Have you set up the table before?
If not, it might be worth it to locate an experienced Linn set up person to avoid a learning curve.
Here's some useful info on used Linn.
http://www.pinkfishmedia.net/forum/showthread.php?t=9844
Always work on the assumption that you will be replacing the springs, grommets, nuts, any less than perfect suspension bolt, oil and the belt.
Oh.. also, the felt mat. Old ones sound nasty. ( I usually replace it every 1.5 year or so )
In addition to the above info, the arm board has changed over the year also. ( current one is three layer laminate with longer bolts )
FIY, I paid 850$ for a stripped down LP12 put together by a local Linn pro 4 years ago. It consisted of refinished plinth ( old one with kickstand holes ), Bask PSU ( new ), Basik Plus arm, Linn K9 cartridge. Pre-Cirkus, but it has a Nirvana mechanicals with new tune up parts.