Essential & Government Enquiries while buying land

Hi Forum Members !

Long time lurker posting here. We are in process of buying our first block of land and our solicitor has requested that we chose from the following searches.

TBH , these come as a surprise , but reading through , sound important for a purchase this large. I was wondering if these are fairly standard searches and the costs quoted are reasonable ?

Our block touches the boundary of the estate that we are buying in , so I suppose some these would be very important but I wanted to check with everyone if there are some that may safely be left out.

Section 603 Certificate (Council Rates) $160.13
Certificate of Land Tax payable under Sec. 47 $55.40
Final Search on Settlement $44

Department of Education & Training $23.93
Department of Defence (unexploded ordinances) $14.95
Ausgrid Formally Energy Australia $55.32
Council – Outstanding Notices$175.10
Roads & Maritime Services (“RMS”) –$59.80
Rail Corporation of NSW $59.80

Section 149 (2) & (5) Certificate. $278.10
Full Title Search E$300.00
Purchaser’s Caveat $250.00
Bankruptcy/ Company Search on settlement $55.00
Survey Report E$1,000.00