Tablet [Q] Cheap FHD Tablet with GPS and Custom Rom support

Hi Guys,

I've been searching for a while for a tablet that will check the bolded points below. What's not bolded is preffered, but not crucial.

-Cheap (Max $300, and this should include shipping to Romania)
-9+ Inch Screen, +FullHD IPS screen ("Retina" preferably, anything over 1920px is good, 2560px would be dreamy)
-Custom ROM support. Or at least rootable. Because let's face it, if Samsung and the other big guys can't make a great ROM from the beginning, what can we expect from a chinese company?
-Built-In GPS. Will be used with GMaps / GPS Navigators
-Quad-Core, 1.5Ghz minimum.
-Good battery life. Or if this is too much for the budget, then let's make it "not-crap-battery-life". 8000-10000mAh would be nice.
-MicroSD slot + OTG capabilities.

I was looking at the Ainol Novo 9 with its 2560px screen, but it doesn't have Custom Rom support(none that I know of) and neither GPS. Ainol Novo 10 Captain the same.

Any recommendations? The most important thing would be the screen as I would be using it mostly for showcasing my photography portfolio and watching videos.

Thanks,
B
-SGSIII running HD Revolution 17.1 + Perseus Kernel @ 1.8Ghz - 7500 Quadrant Score

-SGS running [AOSP][ROM][4.2.1] JellyBean 4.2