[TenTec] Orion vs Orion II

[john]

I'm thinking of finding an Orion, or Orion II.  My primary use would be CW 
DXing, with occasional casual contesting.

Can those of you who have owned both advise whether there's a significant 
(like 2K worth) of functional difference between the two rigs given my 
particular application?  How much of a difference in my application, vs. an 
Omni IV Opt III (my current rig)?

Many thanks in advance to the owners  of these fine rigs for your advice.

John K5MO