I am kicking around the idea of having a buddy build me an AR15/M4 type rifle. This will be mostly for plinking and shooting coyotes and ground hogs. I will not shooting far, by LRH standards, but maybe out to 400-500 yards, with 95% shooting done at 200-300 yards. I'm looking for scope recommendations to fit these needs. I don't want to break the bank, so I will probably have to settle for less than Leupold or better quality. I would prefer the scope to be fairly short in overall length. Also the option to mount a red dot or holo sight atop of the scope would be a great feature. Thanks for any input.