SVs are lovely bikes, nice and nimble with a sweet spot right around 7-8k rpm. You'll be spending a lot of time in 3rd gear... hehe.
Suspension and brakes are the biggest two things with SVs but you should have both of those covered with the gsxr swap on the front and the zx14 rear (my SV has the same). If the swap doesn't include steel braided lines, I would toss those on. Also consider an aftermarket seat (corbin or sergent) as the stocker is formed just right to make you consider amputating your ass after a couple hours.
Looks like that guy has some mods already with no clip-ons and (a single?) moto style grip. Will you be going back to clip-ons after the gsxr swap?