Wireless AP and antenna recommendations (Cisco)

We're building out a new Cisco wireless solution, and need some recommendations (specific APs and antennas) for a couple areas of the building. We'll be proposing lightweight (controller-based) 802.11n APs for most of their standard office space - 1142s with dual internal antennas, specifically. These will handle the office environment w/ no higher than 15' ceilings.  The areas we need recommendations for include:

1) warehouse area used for document storage, where the ceilings are between 30 & 35' high (I've heard the generally-accept maximum ceiling height for internal omni antennas is 25')

2) outdoor area between the two customer buildings, approximately 50' x 50', where they don't want to lose connectivity (iPads, wireless phones) when moving between them.

Thank you, and reference links/documentation is always appreciated.