I think you will still need some dropping resistors added to equal the voltage drop of those tube rectifiers!
5AR4/GZ34/5U4/5Y3 SS conversion
Conversion using UF5407 800V 3Amp 2-Pin DO-2 Soft Recovery Ultrafast Plastic Rectifier Diodes in a standard octal plug with the cap off of a fabric conditioner bottle a perfect press fit to finish it off :D
https://cursorium.co.uk/images/ssr-1.jpeg
https://cursorium.co.uk/images/ssr-2.jpeg
https://cursorium.co.uk/images/ssr-1.jpeg
https://cursorium.co.uk/images/ssr-2.jpeg