Good news/bad news. The good is that your dovetail appears usable. The front sight being gone allows you to remove that cut down bayonet barrel band and install a correct one and then the front sight can go on. The not so good news is there will always be a screw hole at the front of the receiver where one shouldn't be so it's not a great candidate for restoration. For me it clears a mystery on one I owned that had a hole there. Obviously it was for a scope but I'd never seen that mount configuration until your pics. Also, your dovetail looks cratered but I could be wrong. If they're large craters it's probably from having an adjustable sight on it and most likely it didn't have one originally, so you aren't really gaining any greatness by installing an expensive barrel band and flip type rear sight. the stock will be pricey as well.
But to be sure of your needed parts, what are the first 4 digits of the serial number? That tells the date of assembly/manufacture. The trigger group looks to be mix-master too so this was most likely a Rock receiver with Rock barrel when your Dad got it. Carbines that went through rebuild aren't good candidates for restore. One with a scope hole is a little further down the road from that level. Best money is to take the scope mount off and rebuild it as a shooter. Also, reproduction parts look pretty bad to a person with a little training so don't enrich repop makers for their personal gain.