Hi Mexx wehre are you on the costa blanca? If North then there are a few places that offer furniture packs for 2 bed apartments at around 2,000 euros. THat includes a double bed and mattress, bedside cabinets, 2 single beds and mattress, bedside cabinetsa chest of drawers, sofa, table and chairs and a TV station and an armchair (more or less)
The quality is good enough to put in for a holiday home. If you want something a bit more luxurious the same places do a range so you can choose the quality but obviously the price goes up,.
You can find such places in Denia, Gandia (MB Muebles and Complimentos are two that spring to mind but in Denia there are lots of furniture places so you should find something there. If you are further South I am sure there are similar places in Benidorm, Javea Torrevieja, Alicante etc.