Hi Andy,
Linda & Ed here. We are in the process of completion. I plan to visit the apartment in August. I will be looking at air conditioning and furniture then. Also, did you know thre is an IKEA in Tenerife. I visited it the last time I was on the Island and it has everything you would need. I am not a great fan of IKEA, so if you find anywhere good in the area, I would appreciate if you could let me know. I have also paid for pre-installation of air conditioning but don't know who supplies locally.
Cheers for now.