GU29 PP Amplifier

Hi guys , a friend gave me some GU29 tubes , so i want to make a stereo amp with them.
I've a pair output transformers from "Geloso" amplifiers , designed for EL34 in Push Pull , can I use them for gu29 in push pull ? B+ at 400Vdc

What is the ideal Raa for GU29? 5k ?

Can you suggest a good sounding tested schematic? Audioromy ?

Thanks