Alternator mounting with Moroso electric water pump kit

Anyone running an alternator with an electric Moroso belt driven water pump kit? I have a 68 Dart race car with a 360 LA motor. I've been running no alternator for 14 years of racing, charging battery between rounds with no problem. However I've decided to add an alternator to speed up process between rounds. I'm concerned that I won't be able to find an adequate mount that will be stable enough to keep the belt on at high rpm. I shift at 6600 and pull through the traps right at 7000 rpm.

Thanks!