That will be a handy case for sure. whatever you do, don't use chrome-tanned leather. It can damage your firearm. You will want to use a 2-3 oz veg-tan material. When finished, rub it down with neatsfoot oil or a mink oil to keep it soft and supple. Do NOT use a chrome-tan suede. Lacing would be quicker, but depending on the look you are going for, you may want to saddle stitch it. To make evenly spaced holes for stitching, you can mark them with a stitching wheel (https://tandyleather.com/products/craftool-spacer-set?_pos=2&_sid=eac9237a7&_ss=r) then punching holes with an awl or using stitching chisels for hand stitching (https://tandyleather.com/collections/tools/products/88043-535-pro-line-diamond-stitching-chisels)