If I could give you my two pence on starting a new tournament team from scratch yourself it would be DON'T DO IT!
If you haven't played/played much tournament paintball I wouldn't advise jumping into starting a team. It's hard enough to get 5 people to commit to be at the same place at the same time every month or so, let alone booking in the team, getting a paint supplier, transport and everyone's kit etc before having to then worry about the game itself.
I'm sure there are people who have built a brand new team from nothing and done well but I think it's important to get a feel for it first. Go and guest for another team at the super5ives (probably the most easy going tournament and always a laugh) or perhaps a team in the CPPS conference division or the UKSM/UKMM 5 man division 2 (you would need to go to talkpaintball.com to look at those) to get a feel for the game and understand what it's all about.
I would only make a team if you have at least one person who has been there and done that and knows what the score is, whereas starting both the learning curve for playing the sport AND for managing a team at the same time can be very stressful and off-putting.
The CPPS site in Stafford has a sort of 'turn up and go' vibe on training days, you can just pay your entry and buy/bring a box and jump into mini games.