Yet another Hawk seat question

[nij_tp]

So I know this topic has been asked and a number of hopefuls have been put forward but I dont know if anyone has had success with finding a sort of bolt on replacement for the seat. Im a big boy (height and weight) and find that when I am going along a descent straight that I end up on the back seat as it is way more comfortable a position than have my particles thrust against the fuel tank. I am terrified of the thought of hacking what is a useable seat and ending up with none or possible worse one that fits but is hacked and unusable. I think I want to lose the hump and have a much flatter one. I am unaware of any shops in the area to redo the seat and not really sure what it would reasonable run me.

As I say I have read a few topics and there have been a lot of hopeful suggestions but I haven't found a "success, I found x seat and with some trimming of the base it fitted" type things.

As always thanks in advance.