Tube amp recomondations for Monitor audio RX6's?

High every one my sister boyfriend has a pair of monitor audio silver RX6 speakers that he bought a while back. But he never has used them for anything. then I asked him why don't you make a simple dedicated 2 channel listing system. So he is just starting out.

And since me and my dad both have a cary Cad120s amps and cary SLP-98 preamps. He would like to keep up in our ranks of having a dedicated 2 channel system haha. And he thinks it would be cool to have an integrated tube amp to get a system started with the monitor audio speakers.

I looked at the specks of the speakers and they are 90DB efficient and are a 6ohm load recommended 40-120watts.

I found 2 integrated tube amps for him
Triode corp TRV-88SE KT88 push-pull integrated
or a TSAKIRIDIS DEVICES AEOLOS SUPER PLUS INTEGRATED AMPLIFIER which has a Triode circuit.
Also living in canada we only have a select couple of dealers that have tube amps. Plus don want anything above $3000 canadian dollars since 2500 is already pushing the budget.
Any other recomondations