Fuel Tank Design Minimum Depth ?

Hi Guys am newb from Australia and am wanting to fit a fuel tank for an outboard 110mm x 500mm x 2400mm between the stringers in the Hartley cruiser i'm restoring . Is the depth to shallow or does it depend on breather location etc Thanks

 

depth is fine,try and set fuel fill and vent on highest point for tank

 

really mate, you will get a lot of fuel surge, unless you fit lots off baffles, I would put baffles every 600mm(2 feet) then you shoudl be okey dokey,. if you could tilt the tank down a lil aft would help, dont forget a decent water trap filter)

 

Thanks guys am getting a tank made and hoped there wasn't any obvious problems with such a long design . Have so little depth would have to put the vent and filler on the centre console which is no drama .
Thanks Garfy