trailer frame and pre wiring

Got my trailer ready and the wood frame floor built . have sealed the bottom and are ready to bolt wood frame to trailer frame . Question is should i run some wire or pre drill any holes for wire later . i no it has to be done but do i do this now or later ??????
I have some pictures of my build in my personal gallery , you can view them in there as i dont no how to get the album thing to appear in my post
Norm

I have some pictures of my build in my personal gallery , you can view them in there as i dont no how to get the album thing to appear in my post
Norm