That is NOT an Ultimate. The rounded forward fuselage top and canopy shape are a dead give away!
It is a modified Superhawk Mk. I, an Eddie A. Aircraft design.
Eddies original had very long gear that was canted forward and a radial engine cowl.
The top wingspan was 77 in. and the lower was 66 In. They were swept like an Ultimate.
The weight also falls in line with the Superhawk design.

It looks like the top wing is clipped and the bottom wing is extended.
The landing gear appears to be from an Extra 300.
The cowling is unique to your plane.

Having sold hundreds of R/C planes over the past decade, I estimate the value at $800.00
If I were selling it, I would ask $950.00, but may go as low as $650.00 for quick sale.
It will not fly like todays ultra light weight giant scale airplanes.
It will fly very scale like!
The radio is nearly an antique! It is a Futaba 8GSAP. I loved that radio! It just fit my hands like a glove.
I still have one that I bought in 1990. I don't use it anymore, as the 9CHP is so much more capable.

I think Eddies daughter and her husband still sell the kit. They do not have a web site.
Here is their contact info:

Eddie A Aircraft
917 Marie Ct.
Franklin Lakes, NJ 07417
(201) 337-6159

Good luck!
Doug