Do you have any experience working with wood or metal? Cutting perspex isn't that hard if you take it easy. You use the same tools you would use for cutting wood but with metal cutting blades. If you have a router, or know someone with one it would be very easy to make that shape.
If you aren't happy doing it yourself I have used this company before. Just email them with the design and what you want it made from and they will do it for you. They also do flame polishing etc.
http://www.theplasticshop.co.uk/
Hope that helped.