Kansai Airport to Universal Station

Hi there

Thanks for your usual help. I will be travelling with small kids. The plan is to get to hotel earliest possible before we freshen up for dinner. But of course, budget is a concern.

To get from Kansai Airport to Universal Port Hotel, I am considering the following options but am confused and hope you will advise the best step:

1. ETA at KIX is 1525. I plan to convert the JR pass tickets at airport before going to hotel. Would I have enough time to catch the 1610 bus (http://www.kate.co.jp/pc/e_time_table/e_time.html)? If not the next bus is 1910 and this might be too much time at KIX.

2. If I take the train, it appears appropriate train is 1640:
   http://www.hyperdia.com/en/cgi/en/search.html?dep_node=KANSAI%20AIRPORT&arv_node=UNIVERSALCITY&via_node01=&via_node02=&via_node03=&year=2012&month=12&day=10&hour=16&minute=30&search_type=0&search_way=&transtime=undefined&sort=0&max_route=5&ship=off&lmlimit=null&search_target=route&facility=reserved&sum_target=7

Hopefully this is enough time.
Above link shows transfer 2 times. But it appears that I have to do only one transfer at Nishikujo station. Please advise.

If you have better suggestions, please advise.

Much obliged.