The first thought in my mind was going via nether. however I didn't find any nice path in spectator world (world with same seed + gamemode sp). so pathing in nether is major problem. I will have to do in survival + Protect these kittens from taking any damage. So overall nether is risky place.
here is what I have thought
Path 1 (red path):
A -> B : sprinting with the cats till swamp.
B : get some slimeball and make lead so the pet ski can be done (Reference; Indicated by dotted line on map)
B -> taiga -> C : using the above water ski method get ocelots and wolves from taiga to home location
Path 2 (yellow path):
A -> B : use boat to go to swamp quickly.
B : get some slimeball and make lead.
B -> A -> taiga -> C : go to jungle. make ocelots do water ski till taiga. next let wolves + cats do water ski till home location.
Path 3 (light pink path)
I am assuming it is going to take about 5 to 6 hours at max (If I do correctly). Which method is optimum? any other suggestions (no nether) would be good.