Is this engine builder nuts?

My last two race engines cost me over $9000 each
I doing a GTO for a customer and his engine- redo heads with new valve springs, valve job , boil and surface $500 for the pair -short block= crank bearings, cam bearings, rebuild rods new ARP bolts, hone , line hone, straighten crank and polish new rod bearings and rings. $1700. That is reusing his cam ,lifters, pushrods rockers and pistons.
Plus new carb-$375
Distributor-$200
Wire-$85
Oil pump -pickup & shaft-$85
Gasket set with head gaskets$135
Water pump-fuel pump intake bolts ect.
It adds up quick