Chrissytree's site has a couple checklists -
here it is.
As for nirvanas, there's no definitive checklist. Nirvana ponies didn't have organization like the US/UK. Often, there are many ponies of which only one example is known, and lots of new ponies are discovered. And with Nirvanas, it's basically the whole world minus the US, UK, etc. And then there's arguments over classification... yeah. There's a lot of reasons why you can't have a good and accurate nirvana checklist.