Totally repairable. Use Acraglass -- the thin stuff rather than the gel.
Failing that, use a good 2-ton epoxy - clamped tight for 24-36 hours.. I would also 'pin' it as well, after the epoxy is fully set.. The two pin sizes I used was 3/32 or 1/8"... I'd use the latter for your stock...
YMMV...
