Welcome to the forum,
This forum is full of great looking trucks; packed with great mod ideas and there are loads of knowledgeable and experienced people here.
I wouldn't even hesitate putting in 4:10 gears. With the trans OD ratios, the 4:10 is a great highway gear with big tires. You'll likely get better fuel mileage with them too.
AND - We all like pix! Thanks for sharing one of yours.
Enjoy the Z!