Solenttools.co.uk are only uk supplier of these parts. no motor listed, brushes are, but call them they will probably be able to help!
alan
June 2020
Brushes are easy, as you'll have doubtless already found from your own search. That said, you will be lucky indeed to find any more extensive spares for store-specific badged pile 'em high and sell 'em cheap tat. Even if you could find a new motor, it would be likely as expensive as a new trimmer but the repaired trimmer would, of course, have no warranty.