I use a Tachihara 4x5. It is a very robust and light weight camera, and fun to shoot with. I too upgraded from a Graphic camera for all of your same reasons. I purchased mine new about 10 years ago for about $600. They are now in the $700 range, but a used one should be sought for a bit less.
You can use your lens from the Graphic camera as well, so you won't need to spend the extra $$ on optics for now. Just ask for the correct size board when ordering your camera.
Oh, I went through the trial and error process with older view cameras to save money. I tried an Agfa- wow way too heavy to backpack. A Seneca and a Korona wood field camera were also put through the paces. Less movements, and the 100+ years of use made these cameras (in my price range) not rigid enough for me.
steve