Got the awesome deal on AMS-MCO flights in H class earning full miles for £160. ^

Just wondering if there's any opportunity to pay for an u/g to BF if I'm non-elite.
Also, what's BF like on the 764? I couldn't find any seat pics but I'm used to flying BA's Club World and I can see that there are no flat seats on CO (with the possible exception of the 777 which still aren't flat).