Moped Army

Shortly after I bought my 79 Orange Tomo Spirit. I went away for a weekend, leaving my beauty in the trusted hands of a friend. he borrowed the bike and went on a traveling adventure through town, picked up his girlfriend, went by teh waterfront. When the moped ran out of gas he did the friend thing to do and filled up the tank, but he also did the a**hole thing to do and failed to mix oil in. Furthermore I heard stories of whiskey and revving up the bike in the driveway. The bike still runs, but leaks gas even when in storage, and as you can assume is no longer the buck she used to be. Here's my checklist

kill friend
replace carburator

should I modify it to

kill friend
check seals ??

plus is anyone interested in fixing up this bike for $$$
I live in Jersey City, NJ