
Tabmid - I posted above re Cotswold - best thing is once you have dialogue with them you can simply exchange emails and realoem details....they will want your vin legitimately btw

Danny at bmwpartsonline.co.uk is a useful contact. He stocks original equipment equivalent or similar spec parts and will source parts if not in his online catalogue.
Motormec in Suffolk are genuine people
For trim parts then as well as eBay there are salvage specialists such as quarry motors or fab recycling.
No idea which or if any of these do overseas sending.
On a positive note the terms and conditions for eBay in uk changed yesterday. Basically the default for uk sellers is that items sold in uk will be offered internationally by default. If sold in uk to someone overseas the items are sent to a dispatch centre in uk and the buyer picks up additional mailing costs and any other fees such as tax etc. Members can opt out but the default is opt in.
Now may be a food time to hunt the uk based bargains before folk change their settings.
Lastly if you use realoem do bear in mind you can search by or number to. Thus you can identify a part number on your 4.8is and ten enter it on realoem getting a list of models that have same part as yours.
Hope this helps