I think the Sago's would hold up to the heat better than the Queen's. Also, my elephant ears would not do well in the heat. They'd have to be kept on the loggia. Cannas, bamboo and the olive trees would love the heat. So would your bouganvillea. Trouble with Sago's is that they stick.
No, Sagos aren't for touching but they'd look great in a corner of the deck or out by the columns at the front of her house. We need to find out if her deck gets morning or afternoon sunlight that will make a big difference on what type and the placement.