Windows 7 on Apple Bootcamp with Retina

After many years of devotion to Windows XP I finally upgraded to Windows 7 (64bit Professional). Since 2006, this is my 3rd macbook pro running Bootcamp. The last two MBPs lasted 4 years each. Anyway here are the basic specs on the new laptop:

• 2.8GHz Quad-core Intel Core i7, Turbo Boost up to 4.0GHz
• 16GB 1600MHz DDR3L SDRAM
• 512GB PCIe-based Flash Storage
• Intel Iris Pro Graphics and NVIDIA GeForce GT 750M with 2GB of GDDR5 memory

Question:

The new MBP has retina and the native resolution is 2880x1800 which is nice but goddam the fonts are too small. So yes I fiddled with them but the real issue is that I use an external monitor that I extend my desktop to that has native resolution of 1920x1080. (basically it's 1080p)

The external monitor looks fine, except everything is the tiniest bit blurry. I'm thinking the solution is a 4k monitor and I just increase the font size, along with simply getting a bigger monitor. Anyone have experience with Bootcamp running secondary monitor on a native retina MBP? Got a suggestion on monitors how best to do this?

Actually I think I am okay for now. I tweaked some settings in Win7 and the external monitor, while not retina, still looks pretty good. The fundamental problem is the monitor itself (a Samsung TV) just doesn't have enough resolution. I'm probably going to need to buy something pricey, possibly an Apple display but I've since been reading up on how a lot of people have been getting this to work.

If I figure anything else out I'll bump this thread.