The agent that took me on eventually was one that I sent my chapters to almost by accident. Not targeted or researched, but I happened to discover that she accepted e-mail subs and my package was all there on the computer, so I thought 'What the heck?' and sent it!
She loved it enough to meet me, say that it sagged in the middle and needed quite a big rewrite, but that if I did it to her satisfaction, she would take me on. So I did, and she did.
It hasn't sold yet, mind you (although there is a sniff of interest just this week), but no matter. I've just cracked on with the next book, made it stronger in response to editor's comments on the last one, and all the way my agent has believed in me even though I haven't earnt her a penny yet!
I hope you get a good response for this book. If you got a request for the full last time, it's a sure sign that you're on the right track and you must continue to write until you get there
<Added>P.S where abroad are you? There are some agencies who are more accommodating in that respect than others, I think. But a fair proportion of the writers on WW live out of the UK, so they would be better placed to advise on that