Drill and tap the sump for the temp sender and take a T-piece from the stock pressure switch for the pressure sender.
I have a cheap "biltema" T-piece, but you should be able to get it from ang hi perf store.
I've got pretty much the same setup including the "bilhelvete"
![Grin](http://cal-look.no/lounge/Smileys/default/grin.gif)
t-piece but I am not sure how accurate the temp gauge readings are as the wind beneath the car must cool the sump and the sender
![Huh](http://cal-look.no/lounge/Smileys/default/huh.gif)
(even that the sender is facing to rear of the car)