Needed, a replacement S/H engine for 350SL in Spain/UK

Needed, a replacement S/H engine for 350SL in Spain or the UK. A friend has asked me to locate a working secondhand engine for his 350SL which blew up recently. Can anybody please give me some pointers
as to where I can locate one for him, TIA Mark snipped-for-privacy@markXscotford.com (remove the X to reply)
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