Thank you for both parts. Neat part: it tries harder to meet duration rather than budget, though it works to meet them both simultaneously. This is exactly the sizzle. Sydney-Hobart is 23-24h of pure driving. If you drive several hours per day it's several days. With few hours per day it's more than a week. With sightseeing it's longer. So 11 days could be exaclty optimal. Possible to tweak curiosity & comfort levels. With Long Day curiosity you will compress the duration.