Yup, you're right. The ACG pre does have screw terminals.
On another note, you can order a wiring kit from StewMac in the USA. This has all the wire, pots, capacitors and instructions to wire a P-Bass.
[url="http://www.stewmac.com/shop/Electronics,_pickups/Supplies:_Wiring_kits/Wiring_Kit_for_P-Bass.html"]http://www.stewmac.com/shop/Electronics,_p...for_P-Bass.html[/url]