Good morning my name is ***** ***** will assist with your query, please give me a minute to look up the spec of your amp.
If your not running the speaker cables a long distance and next to mains wires you can buy standard speaker wire here for around £7.
For the mains AC cable you need a figure 8 cable, so your looking at between £2-3 depending on the length of cable you require, and can pick them up here.
The DAB Ant is model specific, the SC-PM5 series all use the DAB antenna so you can pick up a replacement from here for £9.
Please let me know if you need anything else clarified.