I am of the thought that a case can be made for Scrabble. What would make it easy is that they could easily resort to the self-contained format NBC went with from 1985 onward. And if time is tight, resort to a best-of-3 format instead of a best-of-5. Otherwise, the format can stay exactly the same, with bonus squares doubled from the original format ($1000 for blue squares, $2000 for pink squares - both upon immediate solves).
For the Bonus Sprint at the end, cash prize depends on format: for returning champions, $10,000 + $5000 for each day until hit (champions progression only), or a flat one-time $25000 prize for one-off champions ($2500 for winning the overall sprint playoff as consolation, if the $25K isn’t won).
The Inquisitive One