I am on the fence. But the XT2 looks interesting

D500??

Hi everyone,this is my 1st post and need advice.
I am Ron 68yo retired advanced amateur photographer,hiker and
live 20 miles from the Great Smoky Mountain National Park.
My camera equipment consists of D300,105 f/2.8,70-300 vr g series and 18-55 dx lens.
I have a $3000 budget and do not sell my pictures, just do this for the enjoyment!!

Nikon has the d500 with battery grip on sale for $1796 until 12/30/2018 and i am getting the bug to upgrade.
with the d500 i am also considering the 17-55 f2.8 and 12-24 f4 lens used with the purchase, i am a Nikon nut.

Now the camera will be used in the national park 70% landscapes on the time

Would the fuji XT2 be a viable option for the d300 replacement or stick with the d500 ?
The XT2 purchase would be with battery grip and 18-55 kit lens and maybe 50-200 lens,am waiting for the
Fuji 8-16mm lens due early in 2018.Just because i have seen in forums that the 10-24 has issues

Also i am 6 foot 250 and can carry the nikon kit but really leaning towards XT2. Thoughts ??

Thanks Ron