sounds like all you need is a wallet, a set of clothes to hang out in at night, and some personal hygene items. Your pretty much going out for day rides, and staying at a friends house. Your going to be in a city, and not some rural backroads so there is no need for any emergency gear (just get off the bike and walk to a payphone) you don't need any camping gear cuase your staying indoors at night.

sounds like a perfect KISS situation to me

Keep It Simple Stupid (if your not going to use it, you don't need it)

Ray