Seems like a good set up to me.
Everything I run is either a FiNor 20/16 or a Tld.
All 20# test.
I have caught Sails, White marlin, even a couple of smaller blues on them in Mexico and Venezuela.
As for the specific brand of reel, you get what you pay for.
I love my FiNors but alot of people don't because of the high maintenance requirments. Wish I could find a few more.
I think the main question is are you going to stand for your fights or sit. If you can stand with the 20s I would stick with those. If you think you need somthing smaller go with that. Just find what you will be comfortable with.