• 1,920 hours of SI staff time (80 hrs/week for 24 months). This comes out to about $48,000, depending on who is putting in these hours.
• $384,000 paid to remote researchers and writers ($16,000/mo for 24 months; our remote researchers generally work part-time, and are relatively inexpensive).
• $30,000 for wiki design, development, hosting costs

• Dealing with spam shouldn't be counted under "design, development and hosting".
• The first item establishes SIAI staff time cost at 25 $ / h. If the (virtual) server itself, bandwidth and technical expert maintenance is 500 $ / month, that still leaves 720 hours of SIAI staff-priced work in the "design, development and hosting" budget.
• If we roughly quadruple your time estimate to 3 hours per week to combat spam, then that still leaves 720 hours - 2 years * 52 weeks * 3 hours/week = 408 hours, which still seems excessive for "design, development and hosting" considering that we have a lot of nice relatively easily customisable wiki software available for free.