Trioving lock for a Tiara 44 Coupe

Can you supply a Trioving lock for a Tiara 44 Coupe? We've lost keys and want to replace the cylinder & have new keys that are different from the one we lost. The lock is on a sliding door and 5382/8 is stamped on the lock face plate. The lock case is SS finish but the rest of the lock hardware is bright chrome. Here's a picture of the key cylinder