A Saito .30 is easily the equal of a classic era .35 - turns a 10x6 at similar RPM to an OS 35S or Fox .35, and with muffler comes in at a similar weight.

For C/L, I'd consider putting a Saito 30 in something like a Twister or Ringmaster, and people have successfully flown Noblers with them too ...

Don't underestimate what that wonderful little four stroke can do.

In terms of more modern engines, consider the Saito to be an equivalent to an OS FP 20 or 25 ... same mount pattern as well (also same mount as the Enya SS25/30/35).