Request for purchase advice

Hello, I am Holger and want to change, please ask for a couple of recommendations about the upcoming sighting/purchase interview, after which I drove a season Shadow 750, I want to develop further, I have the following in mind,see linkhttp://suchen.mobile.de/…/200488919.html?… would be very nice to get tips where I should pay attention and adjust the price/performance ratio I have a second variant in my eye a 1200 RS, however I find the Boxer engine from the sound so thank you so much for your help