For whatever reason, the original maker of those H!P simfiles doesn't want them distributed unless they go through mm-bbs or bemanistyle. (Or at least I think this is the case) I think you probably should ask him.
I can understand the downloading anxiety, after all, they total over 2 GB zipped at the moment, and he's adding to that daily. 2 at a time via bemanistyle or all at once in some package, you'd still end up having to download over 2 gb, so you may as well start with the DDLs.