iv seen a few trials bikes at enduros. i think what the more serious ones do is change the gearing on them for wider ratios. so they can get more flat out speed. as far as other mods go, id sugest a larger tank and move the gear lever closer to your foot so you can sawp cogs quicker.
the thing to bear in mind though is that you will be stood up constantly there are parts in some courses where you need to sit down and go motorcross style to be quick. trials bikes are not as stable at speed than enduro bikes as well so thats another disadvantage.
but if your serious about enduros or fancy an enduro style event then do the scott or get an enduro bike