The $10,000 basis came from reviewing my 1040 Schedule C's for the last 10 years.
I used my initial contribution and then added/subtracted any profits/losses reported on Schedule C.
Meals/Entertainment expenses were 50% on tax basis, but I don't think they add up to $5,000 (or maybe at $500 a year).
But yes, when I converted I only had $5,000 in the bank account.
