Looking at getting a thermal scope for this winter. Do I need a range finding one? How much magnification. Which do you recommend? Would like to stay under $5000. Will be used for calling coyotes, foxes, coons, and the occasional hog in TX. Any help would be great. I have been doing alot of reading and I am looking at Pulsar in a trail version. But would be open to anyone with any experience with this type of hunting. Thanks and HAPPY HUNTING!!!!