make sure you buy a qualitiy(sp?) roll cage.  Samurais do roll over easyer than a full sized rig.  Make sure to buy pading and grab handles too.
as for a SPOA lift, take you pick, there are 15 or more choices but a few are better then others.  i have never bought a SPOA lift so i will let some one else tell you which one to buy.
when you put bigger tires on you will need to regear the trucklet.  You could do this two ways:
1) The easy way.  T-case gears, sammys have a high range reduction
2) The hard way.  Axle gears,  you can change the ring and pinion.  This might be good it you plan to install lockers.
stu