So far there are 10 teams entered inc A Monster Pro team.
Regarding fuel as bazz says you can over think it - in spain Ben and I rode till we hit reserve then came in but most ran 30min sessions.
Im sure if your lump goes bang noone woukd mind you carrying on with a different bike but as you say you wouldnt be classified as finishing.
The main thing is that you enjoy yourselves and we raise a lot of money for charity after all thars what we are doing it for
Tyres wise we will have some of the new Maxxi R1s available which are grippy and durable kind of half way between a sava and pmts and around the £110 bracket per set