The company that currently supplies Dynaco kits is often out of stock, but you could buy one of these: https://www.analogethos.com/pacific-63
A couple of modest but meaningful improvements to the original--a better bias circuit and less feedback--and they are handmade in the USA. I haven't heard one, but the original sounded great, as did Shannon Parks' diytube clone, one of which I used happily for 20 years, so I suspect these will too.
There will also be kits available soon if you want to go that route. And the wonderful EL84 tube is readily available in both new production and NOS from multiple sources.