#1 and #2 you can probably find scripts for.

#3 through #6, however, you're probably going to have to find someone with programming and database skills (figure out what scripting languages and database--i.e., PHP, MySQL, etc.--your web host offers, then find someone who can use those). You might be able to learn it and do it in a month's time if you read some crash-course type of stuff, but if the membership database is central to their site (and if it's going to interact with offline records as well) you want someone with some experience to do it.