What are the typical fees to expect during acquisition process?

I'm trying to figure out how to budget for fees (legal, due diligence, etc.). I'm assuming they vary based on the size of the business but is there a general rule of thumb? I've seen posts claiming upwards of $50K+ in legal fees, which seems especially high unless its a $10M+ business.

My original guess was in the $5-$10K range but might be way off.