Phil, thanks for the info. My tuner does not have a balanced line input. I'll bring the ladder line right up to my house and from that point its about 6' of coax to my rig. This setup will be a major improvement over my current one which is a 31' vertical that's 150' away.
If you could get something like this... (that was 275 watts fully modulated AM, for SSB that's just less than a kilowatt)http://www.ebay.com/itm/Johnson-Viking-275-Watt-Matchbox-Antenna-Tuner-/321060106970
...you'd have what is considered one of the best (high efficiency) ways to drive balanced lines, a link coupled tuner. I shopped for some time and got the smaller Johnson Matchbox for around $100. I run my Collins 30L-1 amp through it often and it handles that just fine. It's great for tuning a ladder line fed doublet. Johnson also made a kilowatt tuner. A kilowatt of AM is way past the capability of our 1500 watt limit on SSB.
Or there are plenty of plans for building your own link coupled tuner.http://www.pituch.net/Steve%27s%20Page/Radio/500%20Watt%20Link%20Coupled%20Tuner/500%20Watt%20tuner1.htmlhttp://www.richardflake.com/ww8jtuner.htm
There's lots more if you research.