I've liked that gun since I first saw it. Barrel being +1 year doesn't mean it's not original. See there's a national match rear sight - look online to figure out if the entire rifle is NM.
They're great fun. I've got a '55ish H&R, all H&R, that I refinished the stock on and it's a dream to shoot. Also have a '42 Springfield (not all SA) that is in what I would consider normal collector condition.
Look at CMP and see if you can get ammo and/or clips from them for cheap. If not, LMK and I'll see if I can help you out.
Since your gun isn't a collector piece, look into a Holbrook device and ported gas plug, they make the M1 more livable for the modern day shooter.
Edited to add: Upon looking at the pics full-size, you do have national match sights. And reading comprehension added the ported gas plug detail. So if it bites your thumb, get a Holbrook.
If no one buys my '42 from me, I might shorten the barrel, get a Boyd's stock in camo or pepper laminate, and refit it to use BAR mags (especially now that you can get 30-round BAR mags).