There are many others way more qualified to answer this than me on this forum, but as someone also shopping
for a boat of about that size I'll throw in my own perspective.
I am definitely going to be getting my own survey done no matter what. This could change depending on the asking price
. I am planning on spending 50-60k, so I think an extra grand in a survey is well worth it. If I were planning on spending less than 15 grand, say, the survey might seem less worthwhile.
Some people say standing rigging should be replaced every 10 years, but then again I'm definitely seeing many boats asking top dollar that are pushing 3 decades on the rigging. I think a good survey can give you some confidence that the old rigging still has some life in it yet.
It's basically a situation where you can't have it both ways. Get a new impartial survey from someone you trust and have some faith in getting 5 more years out of it, or go without a survey and plan on replacing the standing rigging next year for as much as 5 grand (again, just my own guess).