1) Extract 'Profile' file from \Content\ProfileID\4B4F07F0\00000001\ (we'll call this one stfsProfile to avoid confusion)
2) Open stfsProfile in a STFS handling app that supports extracting/overwriting content data (STFS Directory Tool/Horizon/Le Fluffie/etc.)
3) Extract the file labeled 'Profile' (we'll call this one eProfile to avoid confusion)
4) Open eProfile in your preffered hex editing application (Hex Workshop/HxD/etc.) and open its Find dialog
5) Set the value type to Int32, endian type to Big Endian and enter your current Cleos amount into the value textbox. Begin the search..
6) Edit the current value to whatever you desire (1000000000 recommended), save the changes to the file (create a backup if you want) and close the hex editor
7) Start the Windows command prompt
8) Type the path to the troysigner.exe, put a space, type '-r', put another space, type the path to the eProfile and press enter
9) Close command prompt, open stfsProfile in your STFS management app again and overwrite the 'Profile' in the contents with your edited eProfile
10) Re-hash/re-sign the stfsProfile with your preferred app (CONcept/Le Fluffie/Horizon/etc.) and overwrite the 'Profile' file in \Content\ProfileID\4B4F07F0\00000001\ with your edited stfsProfile file
11) Connect your device to your 360 and load up the game