Sorry to post this request when the information I want is probably contained within a number of post on this board, but how to construct search criteria to find it, especially when putting in "Gib" pulls up all manner of posts!

Basically, I'm considering buying a DONE4 ex-GIB, I think this is probably the best value European one - can't be bothered with CAI or IST in terms of cost of getting there etc. and in GIB you can get charged in GBP (2.75% saving!) and I could put it on my BA Amex garnering a further 4-5k miles. Firstly, is there anything wrong about this conclusion?

Secondly, I need to find information about purchasing in GIB. I know several people have done this before, so any suggestions welcome. I will probably go with the BA office there to be honest - does anyone have an email address for them? (You can PM me if you'd prefer not to post it openly).

Apart from that, any further advice/suggestions about an ex-GIB purchase would be most welcome.

For those who are interested, my itinerary will look something like:

GIB-LON
LHR-DXB-LHR (mileage run with maybe a day or two there - done DXB before)
LHR-SYD-PER-MEL-CHC-SYD-HKG-BKK-HKG-JFK (part one)
YYZ-ORD-ANC-ORD-HNL (HNL-SFO award ticket or something) SFO-JFK-LHR (part two)
LON-GIB

Many thanks for any info you can offer.