Here's a good list of items to get you started... Like I said, the first two can often be secured with a deposit as a loan a tool.
Vacuum pump
Amazon.com: Mastercool (90059-R) Silver 1.5 CFM Vacuum Pump: Automotive
Manifold set
http://www.amazon.com/Mastercool-89660-PRO5-R134a-Manifold-Gauge/dp/B00D2HTIIS?ie=UTF8&psc=1&redirect=true&ref_=oh_aui_detailpage_o09_s00
Refill can tap
http://www.amazon.com/Mastercool-85510-R134a-Valve-Screw-Model/dp/B000LQODJC/ref=pd_bxgy_263_3?ie=UTF8&refRID=1XWT0ACYH1VM2YKRRB7S
Dye (though one bottle would be more than enough - a little goes a long way and you can buy refill cans with it premixed)
http://www.amazon.com/Tracer-Products-TP3820-0601-Bottled-R134A/dp/B000HTRNFO?ie=UTF8&psc=1&redirect=true&ref_=oh_aui_detailpage_o06_s00
Yellow UV Glasses
Uvex S145 Astrospec 3000 Safety Eyewear, Black Frame, Amber Ultra-Dura Hardcoat Lens - Safety Glasses - Amazon.com
UV Flashlight
http://www.amazon.com/3-Watt-365nm-Violet-Flashlight-forensic/dp/B00BSINM4Y?ie=UTF8&psc=1&redirect=true&ref_=oh_aui_detailpage_o07_s00
Vacuum pump
Amazon.com: Mastercool (90059-R) Silver 1.5 CFM Vacuum Pump: Automotive
Manifold set
http://www.amazon.com/Mastercool-89660-PRO5-R134a-Manifold-Gauge/dp/B00D2HTIIS?ie=UTF8&psc=1&redirect=true&ref_=oh_aui_detailpage_o09_s00
Refill can tap
http://www.amazon.com/Mastercool-85510-R134a-Valve-Screw-Model/dp/B000LQODJC/ref=pd_bxgy_263_3?ie=UTF8&refRID=1XWT0ACYH1VM2YKRRB7S
Dye (though one bottle would be more than enough - a little goes a long way and you can buy refill cans with it premixed)
http://www.amazon.com/Tracer-Products-TP3820-0601-Bottled-R134A/dp/B000HTRNFO?ie=UTF8&psc=1&redirect=true&ref_=oh_aui_detailpage_o06_s00
Yellow UV Glasses
Uvex S145 Astrospec 3000 Safety Eyewear, Black Frame, Amber Ultra-Dura Hardcoat Lens - Safety Glasses - Amazon.com
UV Flashlight
http://www.amazon.com/3-Watt-365nm-Violet-Flashlight-forensic/dp/B00BSINM4Y?ie=UTF8&psc=1&redirect=true&ref_=oh_aui_detailpage_o07_s00