Bolts can be reused provided they have not been torqued beyond the elastic limit which is at least 95 ft-lb for these bolts.
The problem with new bolts is knowing the quality. If you can get bolts that were made to AR's engineering specification by a company with a robust quality assurance program then go for it. ARP make suitable bolts here in the USA. Maybe there is someone else?
85 GTV6 3L
76 Suzuki GT500
2011 Jaguar XKR
A little government and a little luck are necessary in life, but only a fool trusts either of them. - P.J. O'Rourke