Evander Holyfield -- Fan Drops $40k ... To Attend Mayweather Fight w/ Evander

Evander Holyfield finally has a date to the Mayweather vs. Pacquiao fight ... a mystery fan who just dropped $40,100 for one of the most V.I.P. boxing experiences EVER.

The "Real Deal" was part of an INSANE package featured in an eBay auction -- where the lucky winner gets:

-- One ticket to the fight ... sitting with Evander
-- 1st class airfare to and from Las Vegas
-- "Deluxe" room accommodations at the MGM Grand
-- A fancy steak dinner with Evander before the fight
-- One year of products from Quest Nutrition

There's more ... the proceeds from the auction benefit the CharityVision organization -- which helps visually challenged people in developing nations.

The package received 81 total bids -- and people who bid more than $25k had to pre-qualify with an independent agency.