How would I go about ordering/purchasing a McMillan Edge stock for my M70 Classic stainless in 308.....see on the site the Pricing Guide for a flat black is $363. Then it looks like would have either order Basic inlet which includes action outline & barrel channel $416.....or Full inlet which includes action, floorplate, & barrel channel $519. Need some help on this one. Have no idea what I need...just know I have the original synthetic stock with floorplate that came with the gun when I bought it new in 1993 or 94.