Numbers should mean something, I believe the "DID YOU SEE THIS X7" and the backward Roman Numerals for 502 can be in relation since they both are part of the story with Seans outpost. There are also rouge number in there, 5 ~ 2, random number above Enriques head and whichever else. They may all go together. But just looking at the 502 could bring things up specifically for rushwallet such as: Harry Beam hbeam@wdrb.com (502) 584-6441 ;

Also, you are searching for how all the "tools" work as in the story: "The video tells the story of Dmitri, an office worker who wants to raise money to buy his co-worker a less noisy keyboard using the RushWallet Fundraiser tool. As viewers watch the story, they will learn how the tool works. Throughout the video, viewers also will have the opportunity to collect clues to the passphrases that unlock the hidden brainwallets, thus gaining some hands-on experience with the power of brainwallets in an engaging and interactive way. There are 10 bitcoins up for grabs in the contest." and "The key to a good brainwallet is creating a uniquely generated personal passphrase that is easy to remember but impossible for anyone else to guess. Experts recommend a phrase that is many words long that no-one else in the world has likely ever used (Hint: dont use song lyrics or any phrase that might have ever been printed in a book!)"

Maybe the: DID YOU SEE THIS X7 ; isnt the answer but the key ontop of other keys to unlock the actual answer. Plus the fact that the roman number was used in there can be a key as well. Could also see in 502 and the zero being a false number or something that isnt there so in fact turns to (5 2) blank piece in there being part of the beginning where some see the coins numbers change before it turns from the beginning of the number going from 5 to 2 and each of them holding the same number x2 and the "did you see this" being the beginning link of the frame of the bus before turning into the roman numeral and the "Did you see this" not being the answer but a question and the x7 of course the number of placements so could the number on the coins that have the 5 go to 2 have the x2 not meaning the number of times but rather either multiplication or as part of the whole number "5numberx2" or "2numberx2" x7?

Lol, sorry, kind of a ramble... sleepy and hungry so if anyone thinks of some awesome clue in this chaos let me know and if you figure it out, tips would be fun lol. Im going to go get me a pizza pocket!