That IS a lot of code to re-write. A newer platform may take a lot less code to replicate the functionality, but its still going to be a fair amount of work!
Of the five people in this thread who have used an obscure language, three of us have used it to generate a static site. Five is not statistically significant, but it is suggestive - if you are generating static HTML you do not need things like authentication, routing, CRUD etc. existing solutions for which would be an advantage of a more popular language.