Writing all of the kanji, radicals, and vocab down - good, or bad?

For kanji writing, I suggest to pay attention to stroke order from the start. Once you learn the rules and patterns, the stroke order makes sense, and you will generally produce more natural looking kanji this way. Since more complicated kanji are often created as combination of simpler ones, starting writing in the beginning is a good foundation.

Tofugu has good but longish article on the matter: https://www.tofugu.com/japanese/kanji-stroke-order/

Jisho has animation for stroke order on kanji pages, for example https://jisho.org/search/%E6%9C%88%20%23kanji
and there is a userscript as well: https://community.wanikani.com/t/userscript-stroke-order-diagram/46724

Finally, you can print practice sheets per level on Kanji.sh | Download Kanji worksheets for all Wanikani levels