Eagle is no longer in business anymore, they are owned by addisson mckee which is a UK company... So I dont have an exact quote on a replacement cost.
I do have the invoice from our 3" Eagle EPT-76 PA/MS/HD (push assist, multi-stack, Heavy duty, CNC) which was $460k in 98. I would expect this bender to have been more then double that cost.
For price comparisons, I got some new quotes on 6" cnc benders, and they average about (single stack) 550k-850k and (double stack) 750k-1.2M depending on who's building them. Please note that I'm not getting quotes from anything chinese or shitty IMHO. I've owned a lot of benders, so I dont even shop half the companies that might be cheaper. If the shit breaks all the time it's no deal IMHO and some companies designs are just garbage and shouldnt considered.
Retrofit cost for control only (Bend Pro G2), about $60k (45k control, 15k install). We've done this on 4 benders here. You can get single axis bender controls for about $10k + $5k install. CNC .. G2 or nothing IMHO.
I got some quotes back on rebuilding this specific machine from the ground up, including one from the company who is selling me the core, and they were about $450k-500k plus the cost of the machine. Which is new hydraulics, new control, new paint, rerouting, upgrading some stuff, shipped to us done at our door. 6 months turn around time. A total rip-off really. But that's about average rebuild cost. They figure 6" CNC .. 1M machine, I can get 40% of the new cost for rebuild.
My wife works in the main office, my dad works in the office next to mine. I'm surrounded by it daily.