A company could buy tanning equipment at a wholesaler who's specialized in this line of equipment. This question is sadly not answerable without linking to a specific website.
a tanning place
One could purchase tanning bulbs for a Hex bed wherever Hex beds are sold. One could purchase tanning bulbs online at Tan Parts or Phoenix Suntanning.
There are a lot of places to buy a sling psychrometer. Any company which sells scientific equipment should have them, or one could buy it from Amazon or Bacharach.
Check your local classifieds and craigslists for tanning beds. I did not find any company that sells in your area, however there are a lot of companies you will find on the internet that will ship to you.
I definitely would buy new construction equipment. Especially if you have many jobs to do, you will need your equipment to be reliable.
There a few websites online where you can buy tanning lamps. The websites for Target and Amazon have tanning lamps you can buy. But if you don't like that try looking into local tanning salons having these lamps.
Tanning oil You can buy this at your local chemist or super market
It's expensive if you buy the equipment. It's cheaper if it's rented from a security company. Depending on your needs, costs could be as little as $30/month.
There are several online sources to buy tanning beds. Many stores also sell personal tanning beds for personal use.
Yes! Horizon Fitness would be a great company to buy gym equipment from, as their equipment makes great results for many people. Visit their online shop! http://www.horizonFitness.co.uk/
Tanning injections can be bought at Buy USA Peptides. They are one of the leading manufacturers of research of peptides.
You can try purchasing or renting them from Northern Tool. You can also try a company called Pump Zone.