I own a hilux (yeh i know, how origional

The drivers side spring has sagged to the point where it is flat now. (its a 2" spring remember!!!) I only had it reset maybe 6 months ago. Ive since had the X-over steering mod performed. Thus getting rid of the pain in the rear locator rod and fore/aft steering. So now that i have a capable steering mod that wont break with extra travel I was wondering who here has performed the "rear springs onto the front diff trick"?
Couple of things I need to know is;
1. What springs to remove from the rear set to acheive a decent amount of travel? Not so much that i need to chop off my quarters. Just enough to top out a 35. Maybe not even that much. I will also be moving the top shock mount up around 50-75mm to capitalise on the extra travel. And because the shocks I purchased are a tad too long at the moment.

2. How far is it going to move the axle forward from its original position? Im kinda hoping to move the steering rod forward a little so it doesn't bottom out on the front of the sump. Im aware this will have its down sides, like i will need a longer spline for the driveshaft.
3. How much lift (from a STANDARD height. ie; no lift) does this rear set up give you when placed into the front? Im not too keen on lifting it any higher. I just want springs that arent as rock solid as what i have.
All help will be apreciated.
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