Come on' Froggy. You admit to being part of the same frugal subset of folks that I am. You keep exhaustive records of all expenditures.
Make that engine last 4x as long between builds at the same cost.
Make those tires last 4x as long and cost only $600/set.
Do those two things and entries will increase by 25% or more....so reduce your entry fees by 20%
Keep all the other expenses the same.....
How much did your entire budget just get reduced? I'm guessing close to half.