Hi LS, I would give them a call to discuss, their Tel. No. is at the top of their page, I have never dealt with them but have heard they are good to deal with.
Another company you can contact is Scott Country in Castle Douglas.
https://www.google.co.uk/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwjS7eukgvvYAhVkDMAKHYoyCM8QFggoMAA&url=https%3A%2F%2Fwww.scottcountry.co.uk%2F&usg=AOvVaw1-sHB4YsvRJldRN4k951Ry
Hope this helps.