Well, if all else fails, that’s where title insurance will save me, right?

No again. Without a current survey done for you the buyer, there will be an exclusion in the policy such that the policy will not cover situations that would have been revealed by a current survey. So, encroachments over the property line, adverse possession by adjacent owners, errors in acreage calculations in older surveys, undocumented driveways over the property, etc. will not be covered under the title insurance policy. At best, title insurance covers the real property on the deed, not the structures on it. If part of a house is over the property line, it is not covered by title insurance!