It might be best to translate so that the reader understands that other people helped Solomon do this. (See: [[rc://en/ta/man/translate/figs-synecdoche]])
"four hundred and twenty talents of gold." A talent is a unit of weight equal to about 33 kilograms. AT: "about 14,000 kilograms of gold" (See: [[rc://en/ta/man/translate/translate-numbers]] and [[rc://en/ta/man/translate/translate-bweight]])