In my opinion, at that level of turntable and cartridge it is worth having someone with experience install and properly align your cartridge. Also, if your collection requires a mono cartridge I would suggest purchasing a second Technics headshell to facilitate switching cartridges without having to worry about alignment; the only necessary adjustment should be the counterweight.
Also, personally, I wouldn't bother with the DJ style cartridge if you simply play and listen to records. The Nagaoka you have ordered is generally considered to be far superior. The DJ cartridge is designed more for robustness than anything else.