Reasonable cost range and timeline for a typical project?

I just received a Request for Proposal (RFP) from an associate. I won't bid on it because I think the budget of USD$6000 is insufficient and a launch timeline of 3 months is unrealistic for the scope of the project.

If you are interested in the RFP, I can introduce you to the issuer.

Nonetheless, I'm curious what other agencies or developers would think would be a reasonable cost range and timeline when they see requirements such as the following.

  • Content management (public/anonymous, authenticated/authorized members), although the site is primarily for a small group of fewer than 1000 members.
    • Editor supports WYSIWYG, file uploads (photo, video, documents), spellchecking.
    • ACLs
  • Security and PCI compliance
  • Member account management
  • Event registration and payment
  • Email newsletters to defined interest groups
  • Reporting features for accounts payable/receivable, budget tracking
  • Calendar management
  • Bill payment
  • Desktop and mobile friendly
  • Appealing design

I replied in a new topic Cost estimation outside the Jobs category because Jobs topics auto-expire after 2 months by default.

It would not be unusual for a project with similar features to cost more than 10 times as much ($60000) in Denmark, and I assume it would be the same in the rest of scandinavia.