I am not sure your best resource for a paintball field in the Middle east would be the UKPSF. That may not be the best advice. They are a UK organisation, and not a supplier of product. You need a knowledgeable wholesaler, who has a good history of opening paintball fields, to inform you what you need to get your business set up and running in the most cost-effective way.
If you can't find one, send me a PM and I'll help to get you the advice and service you're going to require.