good job on the internet DSM skillz you possess.
7bolts can be fine, its a thrust washer failure that does them in. new bearings/thrust washer and he should be fine, and he said its a fairly fresh engine, so theres not a problem.
Evo 7-9’s use 7 bolts and they do just dandy.
also, being an Auto, it doesnt have the harsh load on the crank like a heavy clutch would.
this car is gonna scream when its tuned, there are 16g auto 1g cars in the 10s