We are booked right now because of Halloween special, but considering the amount of work Ive done for you in the past, should you need anything in a few weeks, or if you need a steady stream of galleries we can help you as usual Sleazy.
http://www.15dollargalleries.com
As far as how many can someone produce in a week, that's not an easy question to answer. But as mentioned, a gallery template can be made in 30 mins or so. This also depends on including the content (cropping,resizing etc) - gallery design, assembly, animations etc... a good gallery can easily take more than 30 minutes depending on the details.