30 hours for plugin integration? Really?

Hi, I’m trying to set up a website to promote locally-owned businesses in my state and I’ve downloaded an activated the WPMU Dev Directory and Membership plugins. It got a bit over my head so I’m hoping to hire someone to help set up and integrate these plugins so I put together a specific job description listing the activities (setting up the taxonomies, ensuring the payment options and gateways are working, etc.). I just got a bid on the job that included “30 hours for plugin integration.” That seems like a lot of time to me, but I don’t know. I would like to get some feedback here in the WPMU Dev forum. The plugins seem really straight forward so I’m a little baffled about what would take 30 hours to integrate. Advice appreciated. Many thanks.