Great news that Terrapina has found a new home.
Are you looking for a trailer to keep her on when not in the water, or just for the delivery trip? If the latter I suspect we would be able to sort out a loan trailer for the delivery.
If you are looking for a permanent trailer, asking on the site here is a good start. They are relatively scarce without an Atalanta sitting on them. One or two members have been able to buy new trailers for £2500-3000 – shout if you want details.