broken flywheelbolts??

[WISH ONE]

ok i need some help with this.. i need to know if this can be done or if its safe. heres the deal. i got a new sr long block right. i got down with some backyard performance and A Friend and i put it in at my house. when were were bolting on the flywheel, my friend, either didnt torque the bolts enough or too much. anyway. couple days after having the car running. i notice a rattling noice. it would go away when i depressed the clutch and come back when i released it. iwould happen every so often and in between shifts when the pressure plate is supposed to be engaged and disengaged.. I started to think it was a throwout bearing.. eventually in a couple days my clutch went out completely. so i took it to my friends shop. i bought a new toda flywheel and a new clutch along with a TO bearing. pull the tranny off and the clutch and flywheel fall right off. 3 of the flywheel bolts rattled out and 5 are snapped off in the crank hub. NOW HERE IS THE QUestion. would i be able to back those 5 bolts out and re thread the other 3 and also the crank hub has some damage on it from the flywheel rattling back and forth on it. its kinda cratered. could i take a dremil to it and try to make it smooth again or is there a way i can machine it, sand or file it. to make smooth again... or does this call for a new block or crank... help please...