I like the belt idea with the wider belt that
@Fullthrottleguy mentions, I did 4 Dailey setups and 4 Aviad setups, the Dailey pulleys Go out quicker, so if you do a Dailey setup get spare pulley, On the Last pulley we sent it out to our own Hard Coat Treatment, the Aviad used Jones Racing Products pulleys or the own Aviad, the Aviad pulleys is the same we send them out,
the Jones seem Rock solid and hold up very long,
When putting on any of the pulleys on the pump, make sure to use Anit seize the pulleys may not come off if you do not,
It is hard for any Pump Manufacture to hit the right pulley size, so you might want to try one first, for example on some of the motors due to the bearing clearance we went up or down 2 tooth on size to get the oil pressure i wanted on Idle. Do not think of this as a WETSUMP, you do not need massive oil pressure at idle, i run around 18-25 at idle hot with the bearing clearance i have on my car, you can adjust the off idle external with a set screw on the pump, or a spring change.
Like Alex says above if you loose a belt you loose oil pressure instant, find some way to warn you, Mine has a LED light and the dash will flash NO OIL,
Venting on my car, Picture are on another topic i have that is a Dry Sump install on my chassis, My tank is behind the rear seat, I have a lot of sheet metal, so like a remote fill on the fuel tank i have a Remote fill on the oil tank, On my tank, the vent goes from the tank to its own expansion tank 2 feet above the oil tank with two filters installed, I check this tank regularly to see if it was mounted high enough, and when i look in the tank it is completely dry and the filters look new, so the tank should be doing it job. My valve covers go to a separate tank about a foot above the valve covers and 4 feet away, both have 10AN on each valve cover, I dont really get any blowby due to having gapless rings and naturally aspirated,
The Right Tank, what are you doing with the car, for example Richie Rich is car, that he has now, we just did the dry sump on the motor, but he did the tank, the first tank was short and it was a cheap Salandra tank with no baffle, and he just put a filter on the tank. Every full tilt wheelies the oil would splash out, made a mess of things, Rich like to Wheelie so the new tank is twice as tall and is only filled half way up instead of 3/4.
On a dry sump dont over fill the tank, that what everyone does there first time, just human nature i guess, fill the tank with the car running to see the level rev up the motor off idle and see where the level is.