Timing belt broke on interference engine. need advice

Jumping time can and often does cause a great deal more problems than the belt breaking and the cam(s) stopping. a few cogs skipped on the crank pulley will retard the timing and often bend all the exhaust valves. If the valve cover is removed and any valves are seized partly toward being open the the damage will likely be $ignificant. The price of new valves, incidental pieces and labor to replace them might be more than the price of a used engine installed.