Advise for itenarary, hotel & transport in our 2 1/2 days tour in Shenzhen from Hong Kong

Hi, we plan to visit Shenzhen on 4 - 6 of January 2017. We are 20 people and will want to book hotel on our own near the border side. Is hotel nearby Lou Hu area is advisable by you? And we plan to arrive in late afternoon then full day tour the next day to visit WOWorld and Culture Vilage. The 3rd day will be for shopping and in will have to be arriving again in HK Airport at 5pm the latest on 6/01/2017. Can we have your full advise on our itinerary? And what is your proposal for good hotel nearby the border side? Is there any transportation directly to HK airport? Thank you so much for your advise.