Maybe I've totally blown your budget here, but how does this AA itinerary sound ..

DUB ORD LAX SEA in M class
Leaves at 10:35am on Friday 2nd October & into SEA 8:11pm same day
then;

SEA LAX SFO in F
leaving SEA Sat 3 October at 10am & into SFO 3:35pm
then;

SFO LAX SEA in F
leaving SFO Sat 3 October 4:20pm & into SEA 10:11pm
(there is a later flight SFO LAX as well, if AA messes up the connections, as well as quite a few SFO SEA & then you ask for your original status credits) then;

SEA DFW ORD DUB in M class
leaving SEA 6am Sunday 4 October & into DUB 8:35am 5 October

Comes to UK#1155.40 and includes taxes. Status Credits for F flights will be 300. Don't know if you get the transatlantic credits, but M class will get you a handful more from ORD LAX SEA DFW ORD. Someone with better calculation skills than me will be able to work out how many. (please)

There may be other cheaper fares to the US East coast, and then a nice run in F there.

I think I've been spending too much time on this site if that's my suggestion to someone on how to spend a long weekend!
Storyteller