Since I'm planning to operate some of the Kato Pocket line models, I looked through Amazon and saw that the KATO N Gauge Chibi Convex Set has these funky couplings that my Southern Pacific observation car has(https://www.amazon.com/gp/product/B07R46SS4G/ref=ox_sc_act_title_6?smid=A28V1QXS53MQKP&th=1), and I'm planning to convert them to the standard KATO couplings that most of the rolling I own, for the reason is that I'm planning to operate with American cabooses, as caboose hops and probably some passenger excursions. Still, I don't know what materials to start or how to convert the model in the link safely so I won't damage the model, any tips will help.
-Dillon Trinh