I'm pretty sure the diameter is 7" but I can't be sure of the other because I'm still at work. I'm talking to a rep from Eagle Lights and he says that their 7" light will fit right in without any modification. I sent him the headlight schematic and he said he'd just need the measurements to tell me with certainty. Thanks.
Thanks Carotman. I'll see what the rep says regarding fitment. I just wanted to get them to say it'll fit so that if I have to do extensive modifications, they'll be more likely to accept the return (Or maybe even throw in that ring I'd need).