Hi Florian,
we are at the beginning of a worldwide recession. I would recommend you keep your powder dry (save the cash) and get started with film. Try a roll film back like Linhof's Super rolles which often sell on
www.ebay.de for less than EUR 100. Or 4x5 sheet film.
I just posted some LF newbie questions myself. But my 2 cents would be
not
to use a single focus WA lens. Take fish eyes, it will get boring. DOF is noice now and then but even a tele can be useful in landscape photography. In other words, what's your big thing with extreme wide angle lenses? One location, 2 or 3 lenses and the result will be very
different. I would prefer this to having the greatest fish eye or other WA.
Q: which LF system have you chosen? would you buy the camera new? I just won an old Linhof Kardan Bi with tripod for $ 255 in the USA on eBay. If you haven't chosen a LF system yet, look what's available! Q: would hauling a big tripod with a monorail camera be a problem for you? There are field cameras.
Scheimpflug: I only used that on buildings and straight lines. In nature, I do not think of many uses. But you want extreme DOF, right? Well, go make up your mind about how heavy your equipment can be.
Again, why not get started using film? A few hundred Euros pay for a roll film back and 30 120 films like Velvia 50s or whatever you are choosing. If you like LF well, then you can invest the big bucks on some digital back.
BTW, I opted for the Fuji GX 680 and Mamiya RB 67 MF systems as Hasselblads are simply too expensive for my liking.
I started out taking photos like a madman. one day, I had to throw away thousands of junk prints and slides. That was very emotiuonal and painful. But it taught me an important lesson. Less many but better photos are preferable. quality, not quantity. And that size matters. I still have some wonderful MF and LF slides of roses. Deep colours, quality images. How do you feel about quality and quantity? Would you want to "get it right" and just take a few careful LF photos or choose auto bracketing and come home with hundreds of hastily shot images?
Take care,
Chris