How to say “Is the pizza oven hot enough for the first order yet?” in Japanese

In Japanese

ピザ窯(がま)は、最初(さいしょ)の注文(ちゅうもん)を焼(や)けるくらいもう熱(あつ)くなった？

Piza gama wa, saisho no chūmon o yakeru kurai mō atsuku natta?