I've managed to find a replacement supplier for crop vests. The colouring and font design is very similiar to the original one, however, two styles are available - these being a standard "full" back and a T-back. Also you'll be pleased to hear they're of equal quality (Lycra) to the original, but considerably cheaper at £13:80.
I presently have a sample available if you want to try before you buy. The ordering will be slightly different from conventional methods, in as much as you'll be required to complete an order form (which will be made available asap via a link off the club kit page) and post off along with your cheque.
Have a look for yourself at the link below, but please dont order just yet as the account set up is not yet finalised.
Please feel free to contact me if you require any further info.