@DL6MHC Hard Rock 50 may be the best bet. I am on the Hermes-Lite mailing list and I have seen people using it. The ACC output on the back can directly interface with HR-50.
I wonder how one of those miniPA70/100 along with a LPF board would fare with the 5 W input. Apparently there is also a low power output (~20mW?) that comes out directly from AD9866, which can be used with another PA+filters.
@vu3rdd Thank you very much for all information! That is very helpful. The Hard Rock 50 seems to be the most painless route to go.
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