PVE ?
Cannons have their uses, but not on the Type-10. You can, but you will struggle to hit (kill) things with it owing to the low rate of fire, low projectile speed, and inability to keep pace with your target. Instead you want multicannons, which turns you into a lead hose capable of shredding anything a fair distance in front of you (you need the gimballs to converge). Another effective T10 build is the disco ball covered in laser turrets, useful for AFK farming bounties in resourcing sites.
The actual builds are uncomplicated given that the class 8 power plant leaves generous room for trial and error. But do think through what you plan to do with it, because that will determine how the tank is fit. Is it going to be a bounty hunter, or combat hauler? How do you plan to move this ship around the bubble, by transfers or jumps?
If you haven't figured any of that out, just buy one and start experimenting. NPCs have a hard time mass-locking the T10 so you can always low-wake out.
The actual builds are uncomplicated given that the class 8 power plant leaves generous room for trial and error. But do think through what you plan to do with it, because that will determine how the tank is fit. Is it going to be a bounty hunter, or combat hauler? How do you plan to move this ship around the bubble, by transfers or jumps?
If you haven't figured any of that out, just buy one and start experimenting. NPCs have a hard time mass-locking the T10 so you can always low-wake out.
I use this for everything 
s.orbis.zone
Coriolis EDCD Edition
A ship builder, outfitting and comparison tool for Elite Dangerous
s.orbis.zone
Seems a likely scenario but might work OK in PVE if flown suitably (can't say I have tried Type-10 outside of AX combat). What about turreted cannons, would they be more likely to hit
OP, if you are looking for a top-end combat vessel as per the battleship moniker you may end up disappointed but by all means let us know how it goes