I am half way through one that looks just like this one.... hardest bit is neatly popping the old spot welds and fabbing up 'partial' panels - ie , not the door pillar, footwell or vent repair strips. Tacking it up, welding it and smoothing it all off is the easy (and satisfying) bit. Spending the time getting all the fits and seams right is a ball ache too. Also I was given the same advice as above and am doing it on the chassis