From the rear edge forward the key lock is 300 X 110 in from outer edge. this will determine ware the lock plate is fitted to the tub liner
Again from the rear of tub looking forward Strut hinge internal on tub liner to center of mounting bracket is 1120.. from the rear of lid to extended gas strut Bracket center is 1330
Note strut does not have to be fully extended to work properly as long as both sides are square
Front mounting hinge is 290 from outside edge of tub to furtherest edge of bracket . looking at it as a unit as long as lid mounts match tub liner mounts 5 to 10 mm either way wont mater much as long as it is square , Key ways for locks need to be mounted over fastening points
Failing that send me a PM and we can meet up some ware for a look.