Drilling by Aug 2018 is a bit optimistic considering they haven’t filed the pooling application yet.
They just filed spacing and location exceptions. Historically 3-5 months for them to have an order issued after the application. Then another 5-7 months for them to Spud a well after a pooling order is issued. That is based on wells in the same township.
Based on surrounding poolings, it looks like it should pool for about $1500 and 3/16 if that helps.
Sometimes the leasing landman will give you the most resent transaction making you the owner.
You might make a deal in your lease with them giving you the title chain info that directly affects your property. That would be the cheapest way. They already have that information so it would not “cost” them anything. They may not want to release it right now, but you can place it in your lease to be released on Well Spud. This information might be valuable enough for you to take a few $ less with a company willing to give it to you.
Based on what you have stated in your question, it sounds like you might not have marketable title. I’d strongly suggest putting back some money to cure any potential title issues from any lease bonus money you obtain. It could be needed to place you in pay status when the well starts producing.