tightening the rack is fairly easy, ive had to do it on a couple of the road legal mk5's ive had.
I would say the fuel pump is the hard starting problem as oppose to the choke
you might find it cheaper to buy a single piece driveshaft than a new driveshaft doughnut, then it solves that problem forever
also +1 for putting recaros in, they make the driving position so much more comfortable and fit semi easily to the mk5 rails