I usually pleased JT65 mode on HF bands. It can used QRP less than 5W.
However, If I will try EME that it is not enough power on normal transceiver. Therefor It need more power by EME.
If I will need power then I must use liner amp. But about 200 W of anything isn't sold from a manufacturer present. I'd have no choice but to make by myself. If someone knows a good kit, please tell me.