I assisted a surveyor on a few jobs many years ago. The biggest unknown is generally the research of the metes and bounds and tieing into established pins in the ground. If there have been quality surveys done in the past (especially the recent past), life is a lot easier. If not, there can be a lot more research. If you have a copy of your Warranty Deed, look at the metes and bounds (generally 1/2 way down the first page). If there is language that gives specific distances and bearings from iron pins, axles, rerod, etc., that will be helpful. For instance, my property description describes a chunk of ground that is perfectly 1/4 mile wide x 3/4 mile deep (120 acres). Then it follows with language that subtracts a perfect 208' x 208' piece (a 1 acre lot), then it follows with language that subtracts another 60 some acres. Nowhere in the description are any pins mentioned, so I assume that no real survey work was ever done. It is also a red flag when perfectly straight bearings and distances give exact acreages.
So assuming that a real survey has never been done, and all the neighbors have been working off of "that ole treeline (or pile of rocks or old shitty fence) is the property line mentality", realize going in that at best case, it is off a little. This can create a pissing match. Be prepared to gain or lose some property. Hopefully your neighbor wants to know where the line really is too. To me, the worst thing that can happen is spending money on a survey just to get results that one neighbor disputes, then you have to fight it out in court, or pretend that you never had it surveyed and go back to using the old "property" line.
ETA: $540 is dirt cheap. Completing a survey in 4.5 hours including research, finding pins and field work is fast.