Living aboard a 1984 12Meter Catalac Sailboat with an Optimus International oven that no longer functions. Apparently the Optimus International model oven is no longer available. Does anyone have any replacement suggestions please? Here are the measurements in case anyone is able to offer guidance. Thank-you.

OPENING IN MM and INCHES
W 635MM [25 inches maximum width]
H 406.4MM [16 inches maximum height not including cooktop]
D 635MM [25 inches maximum depth]

CURRENT OVEN [Optimus International] MEASUREMENT IN MM and INCHES
W 457.2MM [18 inches wide]
H 406.4MM [16 inches high]
D 330.2MM [13 inches deep]