I have decided what my next amp project is going to be.
It will be a PPP EL84 using all toroid trannys.
I ordered up another set of Amplimo 3A524s and a nice todoid PT from ebay. Haven't decided whether I will run the EL84s in pentode or triode mode yet since the OPTs have no UL. I have plenty of 3 terminal regulators so I may run the EL84s using them in constant current mode.
Haven't decided on driver circuitry yet. More to follow after major parts arrive. The Amplimos ship from Netherlands. Weeeeee :)