New 8x10 cameras are expensive. New lenses for them are expensive. The cameras are big. The other equipment you need to use them is also big. The negative is big too...but think about how big you really need it to be to get what you want...and how much money you want to spend to get the pix you want.
I would start in LF with a used 4x5 kit, personally...for a plethora of reasons which have been discussed at length in previous threads. Most importantly, it is the most common, equipment- and supply-wise, the cheapest, and even this relatively small sheet film format will give you enough quality to knock the socks off of almost anyone.
...and before that, let us remember that you have never even shot film. I would at least learn the basics of film photography on a smaller camera, such as a manual, meterless 35mm or medium-format SLR. Making all the beginning mistakes you will make will be much cheaper this way, as will your initial investment.
P.S. FYI, a Sinar F travels extremely well; arguably better than any other monorail camera. They are now so cheap that it is hard to ever recommend anything else to someone who is serious about learning 4x5 and using it into the future. They are cheap, they are arguably the best all-around view camera ever made, they are easy to use, to handle, and to pack, the system is extensive (to say the least), and the backward-and-forward parts compatibility is also a huge plus.