You won't find a supplier prepared to take the risk on you! You need to derisk it yourself by paying by credit card in 30K lumps - take care there are dragons here. Or go to your local betting shop and see if you can get cover that way. We used Norrsken and they worked out just fine. Carefully doing the measuring processing the order sorting install, doing it well and fixing the one problem we had, a seal getting caught up, diligently.