Jackson project questions

[sixx_ gunner]

Got a DK2 Eerie Dess body off the bay and picked up a clean DK2M off craigslist for a couple hundy. My plan is to remove the neck, JT580 bridge, bridge pickup and electronics and transplant them into this DK2 body so I can have the maple fretboard on the Eerie Dess body. A couple things have come up before I tackle this.
The whole family so far:

1. Neck screws torque. Just tighten till snug or is there a set spec?
2. What single & middle pickup to use with this JB from the DK2M?
3. Better to upgrade NOW to a real Floyd or does it really matter as I am a bedroom musician?
I have seen alot of videos about the sustainer pickup. This would be AWESOME, but is it worth the cost?
I am looking for some feedback on the singles. I have read the search results till I am ready to puke. A little help please?

[warlok]

1 - Tight enough for neck to not move. The maple is pretty hard and doesn't strip easy, unless you're being ridiculous with it.
2 - I like a Duckbucker (M) and Little '59 (N) with the JB in my Model 6 and Soloist Pro.
3 - I like JT580LP's. Never had a problem with them. And IMHO, OFR's look shitty in the JT580LP route..

[sixx_ gunner]

So....I have picked up a SD cool rails & vintage rails pickup from over on the sevenstring.org forum. Opinions on where to put each one as far as neck or middle? I have listened to both on the seymour duncan site and seem to think the vintage sounds a little more twangy and the cool rails a little more '70ish. I will be using the JB in the bridge from the DK2M.