If it were me...I'd replace the stock bolt with ARP and call it a day. I personally would not re-use the stock head bolts...having said that, the Toyota bolts are high quality and you will probably be fine if you do re-use them. Torque them down to 75 ft/lbs in multiple passes (10 ft/lb increments) per the TRSM pattern.
I highly recommend you do a search here on replacing a head gasket...there's more to it than just the bolts used