This is most likely how he gets the RP assuming he's using a legal way. http://forum.mmosite.com/thread/2/93/20111016/How_to_get_more_Riot_Points_with_ur_money_legally-4e9ab29a465bfdc13-1.html
I am willing to do this, I know I am a newcomer and you probably don't trust me, but I am trusted on a old private server Near-Reality. Also I am willing to give a deposit to a MM of the amount of items/money you have on the account so if I scam you will be refunded by the middleman.
Willing yo sell you my account with 77 skins 85 champs and 9 rune pages etc I know I am not trusted on these forums so I am also willing to use PA at my expense or use a OMM