xxxt coversion or but xxx sct?
#2
I have a conversion that I bought complete but if I were buying new I'd think if over carefully. The Mf1 conversion will have a much nicer spec (shocks, ball diff, graphite parts etc.) but keep in mind the cost of all the other stuff needed to complete. Body-$35-40, wheels/tires, bumper and body mounts (conversions don't include) it adds up to a lot. You might find that pirating the good stuff of of the Mf1 onto a new truck is the way to go for you.
#4
Yes, those things. You may want the CRC front axles so you can use SC10 front wheels, the rears fit on the stock axles. You'll need the front and rear bumper kits and a motor guard (has tabs for mounting other parts) too. It should not be long before the EA3 XXXsct arms are out if they aren't already. These are shorter than the XXXT arms and are supposed to be better. You'll need rear bones for the back if you make this change too.