New wanting to build around PHR Dreadnought

I'm wanting to build my fleet around the PHR Dreadnought. I think I seen you can have a custom Admiral and I wanna make PHR faster and more durable it seems they can hit pretty good but their very slow and against the UCM they don't take enough hits to justify the speed loss? I'm really wanting to get into this game I need aq idea of cost or best places to buy and I'm in Tennessee so I'm curious where I could play??