Finding parts for my TAZ 5

I need some help in finding parts for my TAZ 5

  1. THERMISTOR 100k ohm Semitech GT-2 for Hexagon. I ordered one of these from IT-works 3D but the wiring is very short.
  2. Belts for moving the bed and for moving the hot end.

For belts, you can use any GT2 belt, buy from amazon, eBay, reprapworld etc.

as for the hotend, why not upgrade to a Titan aero toolhead??

I have a question regarding the upgrade to a Titan aero - I currently have a Titan/v6 combo. Is it worth upgrading that to an Aero, or will it be largely the same performance as my current setup? What would the advantages of that be?