Is there any uhf distribution amps that have say 4 or 5 inputs and a few outputs maybe 8 or so, because the most i can find is 2 inputs

The people who wired my house used a couple of Diplexors to bring 4 RF feeds down to two. The distribution amp also had a Entertainment Out and Entertainment In which allowed me to route an additional feed from the RF2 output on my Digibox back and then onto the 8 Outputs.

OnQ though do a Video Engine Module that has 5 RF inputs. See this Link