Airsporter vs new budget springer

[Joseyw]

O rings / brass inserts sound excellent, I asked because below the lever side of the tap on the stock mine is small area that is darker than the rest of the wood.

Perhaps grease may have leached from tap during 30+ years of storage?
Or just from where the wood may have been refinished (unknown) and was applied heavier in that area?
It is GM model with a Matt finish and in good condition for age.
Or even someone’s hand during use over time, Don’t know.

Hopefully with the methods previously suggested to check tap integrity then I will know once re-assembled and that it doesn’t leak