Whats your plan if you get this system working? Keep in mind its quite limited on what will run on it, OS and apps have moved on! Both from function and support.
Think of it this way… This is like a [https://en.wikipedia.org/wiki/Ford_Model_A_(1927–1931)|Ford Model A] a beautiful car but not really able to keep up with todays vehicles on the highway without boiling over.
I would look for a newer used system (21.5” or 27” 2011 or newer) as being a better investment.