Thanks for that Henz, I was chatting to a friend last night who is in the process of building a 600rwkw+ Coyote and he pointed me in the direction of the Process West twin DW300 pump/surge tank with their fitting kit including Turbosmart reg, also upgrading the in tank pump to a Walbro 460.
Going in that direction would allow me to remove my Plazmaman surge/044 and sell it on to offset some of the cost. This would also fairly future proof the fuel system too.
Jack