No, he has a 4" bolt circle, so he's got a major obstacle right out of the gate. We also don't know if the stock wheels are disc caliper compatible either. Many earlier wheels made before wide spread use of disc brakes do not have adequate space to clear a caliper, which sticks out further than a drum face.
So it kind of comes down to spending a small fortune on small diameter rotors with 4" bolt pattern to keep the OEM 14" wheels (which still may not fit with discs) , or spending a smaller chunk of money on replacement wheels and a more standard 4.5" bolt pattern disc and axle swap.
Like Ebodymod says, how much effort and research you put into finding compatible parts will determine how expensive this swap will be. 4.5" bolt pattern 14" and 15" wheels are not hard to find, nor are they expensive. 10.89" and 11.75" OEM style brake conversions are also not too difficult nor expensive to source parts for. If you simple sit down, open a catalog and start ordering parts, then the costs go up, but you also may get more complete kits of all the required conversion parts.
