Theres a few RB30 blocks available down here, guys had brought it down but the cost to build the RB30DET was a hefty price and some tricky adjustments.
Building an RB30 is no different than building an RB26, the only thing different is that on the RB30 block it needs to be drilled an tapped for a stud for the second tensioner, nothing major anyway. Lookout for a RIPS RB30 heading your way .
.