Always keep a record. Be honest with yourself.
I keep a spreadsheet on every bike.
Some folks make a book, dates, photos,
parts used where they got them, cost. ect.
I have a 53 chevy, but only half of it is from a 53 chevy. I should wright down it has granada rotors on the front, s-10 rear axle, Cadillac 500 engine, on and on.
the next owner (when I die) would really need that type of information. My last truck (build) I included a list of all the major
parts used on it, and put in in the glove box. So the new owner would know what locker and gear ratio was in the rear axle without guessing or having to open it up.
just an example
You will see in a very short time $2,000 will go by quick.
But you will have the only bike ever assembled by you, and you got to pick every part of it.
Post some pics
MrC.