Intellec-mds 800

I am considering buying a classic pc. The one I might buy is the intellec mds 800. It comes with a drive also. I dont know much about vintage pc's but would love to be like you all. I thought starting with one of the best pc's would be good. So my question is, if I were to buy this pc, what type of monitor/keyboard do I hook up to it? Where can I get one? I think I need a tty serial monitor/keyboard. (Thats what I read online, what does that mean?) Is the ebay below a terminal that will work on the this intellec? http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=170&item=511… Or do I have to buy a vintage one like this: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=1247&item=51… I want to test this intellec before I buy it and want a monitor/keyboard to hook up to it before I buy it. I also dont want to spend alot for the monitor/keyboard since the pc is quite costly. Thanks for your advice, Andy ps, if I buy this intellec, what can I do with it?