Got the Tapu now and am pleased to say I am the owner of a lovely triplex villa. Â Ended up with less than 3 days to try and furnish it all as had to return to the UK, unfortunately!
Thank you so much everyone for all the advice on this post and the forum, generally. Â Was invaluable in making quick decisions. Â Eventually, though we walked around most shops mentioned and many others. Â Bekir wasn't at Eran Spot, but I have to say we were rather disappointed here, after what everyone had said. Â Prices didn't seem competitive. Maybe it was because he wasn't there? Â Had very good service from the Vestel shop and there is a new, mainly Samsung, shop opened, Gallerix (or similar!). Â Had some very good deals on White goods.
Rose at TAC on the back road near the Bosch shop has excellent English and was very helpful with measuring up and choosing curtains and blinds.  Stayed at  the shop until 9pm and then she took us for dinner, can't get better than that! (Hope the end results are as good!)
Ergin at Fethiye Property Services as helpful as everyone has suggested and the big Istakabul shop had a good range of nice furniture at pretty reasonable prices, overall.
Thanks again all for the suggestions!