I've bought two Victorian houses and didn't bother with surveys on either of them as I could see that they both needed loads of work (new windows, floors replastering throughout, rewiring, new boiler, bathrooms moving, new roof on the second etc etc.) They'd both been stood up for over 100 years without any obvious structural faults beyond a few cracked bricks and some damp, so what was a survey actually going to tell me?
Also, back in the day, I don't think my parents ever had surveys done on houses they bought - it just wasn't done then.
OTOH, if you're risk averse and won't sleep at night unless you've got one, then you'd better fork out your £600.
What I would recommend though, if you happen to know any builders, or someone else with a dispassionate point of view and some relevant experience - get them to have a look and point out anything that looks untoward, and if you find anything you may want to revise your offer downwards.