You said that you are starting out in large format so we all assumed that you were talking about 4x5 since most people start there. You can certainly start with an 8x10 if you want but most recommend starting out with 4x5 due to costs. Everything is more expensive with 8x10, camera, lenses, tripod, film holders and film. A lot of people try large format and find that for some reason or other that sheet film is not for them. This is why we suggest starting cheap so if you decide it's not for you then you won't get hurt if you later sell.
If you do decide to go with an 8x10 most people start with a normal lens around 300mm (240-360mm). A real good inexpensive choice would be a Fujinon 250mm f/6.7 single coated lens. I paid just under $300.00 for mine.