Is it the one at Music Swop Shop? A few hints in your posts.
I had a look at the pic of that one online-
I think it is too dear for the condition. I'm with Aussie Mark- it appears a bit knocked around, in our fair land $1200 or so, maybe less if there are some issues. Make an offer- the owner will either accept, reject it or haggle.
Ripper parts aren't easy to get, if some need replacing, although they do come up occasionally. The low $AU adds to the cost if you need to get something from O/S.
A few things- check the neck out for twist etc- there are a couple getting around with bad necks. Not saying this is one of those but a twisted neck on a Ripper is a big problem.
Having said that, I really like Ripper necks- they are among my favourites. I have an unbound ES 335 Bass and the neck is very similar.
I had a pickup die in a big bodied 74 Ripper a while back. I got some great advice from the guys here.
I ended up going with a rewind of my pickup by SD Custom Shop- MJ there was great.
The cost was a bit cheaper than a SD CS one out here but not inconsequential when factoring in two way postage- over $AU200 from memory.
I really can't pick a difference between the original pickup and now that it is rewound.
Rippers are a thing all of their own soundwise- you either like them or don't IMO.
I really like mine for our amplified acoustic set- it works really well with the guitarist's Maton ECW80- but Rippers are quite versatile.