Personally, I would chuck it, and start all over again. Call it a learning experience. (I have done my own learning this way....I have stocks here that I got fairly far along on and decided it was just wrong and put them away, got a new stock blank and started over.)
Assuming your pan is still sufficiently on the barrel (which I still can't believe).... alternative 1 is, as was stated, no front lock bolt or use some kind of hook arrangement. I do think the gun will look quite odd with the lock being so low.
Alternative 2 is to cut into the bottom of the barrel channel (and probably filling the bottom of the ramrod channel) and make the ramrod go ABOVE the front lock bolt. Yes, it was done on rare occasion. Yes, it looks goofy. And yes, you will probably then run into barrel tenon problems, and yes, your ramrod will have to be quite tapered.
Alternative 3 is to carefully fit and inlet wood to fill up your low lock inlet, glue it in with Titebond II or III, and then re-inlet the lock where it should be. Yes, you will possibly cut into the glued-in part when shaping the stock, so the fill pieces need to be WELL fitted.