the software i used was solidworks 2009. and yes i understand that the shocks will make up for alot of what that model is exaggerating.. yes i did all the welding myself, used a craftsman 110 flux core, just have to know where to set the wirespeed to get great burns, i use the .03 wire in hopes to get deeper welds and from my pipe bending tests the pipe would curl to be a circle before the welds snaped.. im by no means an engineer, just downloaded the software from demonoid and went to town. theres lots of tutorials floating around on the internet. my guess is the frame alone weights in around 1200-1400 lbs takes 2 adults to lift just the front, same with the back, 4 guys can pick it up off the ground.