Bastens - We are lucky enough to have one of the LEGO City Train Track Splitter 7996 which is now retired. That being said I wouldn't recommend spending over $250 to buy
Lego City Train Track Splitter (7996), Building Sets - Amazon Canada
Double Crossover Track : Set 7996-1 | BrickLink
Lego City Trains Train Track Rail Straight Rails | City Train Track Building Blocks - Blocks - Aliexpress