The UTG mount is not recommended. Mounting a scope on an M14 type rifle cannot be done cheaply if you want something that holds zero. Examples of good mounts include the ARMS 18, Springfield Armory 3rd generation, or Smith Enterprises. Bassett Machine also makes a couple of quick detach mounts that don't require removal of the stripper clip guide.
The Bushnell Elite 3200 10x40 is decent for the money, but it's suitability depends on what sort of shooting you plan on doing. Keep in mind that 10x is a bit much for offhand shooting and an M14 isn't really a precision rifle.