I'm a nobody, and I understand glass quality is highly subjective . . . but as a guy with limited hobby funds, humor me with a short story;
A deer-hunting buddy, and a couple nature-loving family members of mine were all in the market for binoculars. Of course with me being the riflescope snob, it was apparently my job to steer them in the right direction. In an attempt to make an informed choice, I found an online store with an excellent return policy. I then pulled out the credit card and purchased about $3,500 worth of binoculars. I bought about a dozen different pair ranging in price from $300 to $1200. I had multiple samples from Nikon, Vortex, Meopta, Kahles, Leupold, Burris, and even one Celestron.
I laid them all out on my dining room table, and my group started comparing and contrasting. They didn't know shit about the brands or the prices. Their opinions were based strictly on glass quality, eye-relief, and field of view.
When the evaluation was complete, my deer-hunting buddy, my wife, and my mother in-law all picked the
Meopta 6.5x32mm.
Yeah, I know. But after conducting the same evaluation myself I could see their points. This Meopta glass was 90%-95% as nice as the 8x Kahles and 8x Vortex Razors. However the FOV was much larger due to the smaller power. The Meoptas were also optically correct all the way to the edges. Many of the other less expensive samples either had significant curvature (like the Vortex Viper HDs), or unnatural coloration.
In short, I say don't bother fixing the Kahles. Find a place with a good return policy, and test out a pair of these Meopta 6.5x32mms. They are far from the usual China imports. They are actually made in New York using imported Meopta glass and parts. And I'm betting that as a deer-hunter you will appreciate the larger exit pupil in low light, the light and compact design (21oz), and also the larger field-of-view when scanning. Overall, I think you will be very pleasantly surprised.
Good luck