I have a question about getting married. I am a US citizen and my boyfriend is a UK citizen.?

The situation is somewhat more complicated than that. I currently live in the Czech Republic. He is living in London for the summer. We would like to get married at the end of the summer or beginning of fall. We were thinking that we would get married in Scotland, but I will have to apply for a marriage visa. However, we won't be living in the UK, as I have a job in Czech Republic, and I am worried that applying for the marriage visa could mess up the status of my Czech residency visa. We could get married in Prague, however that process seems to be quite complicated as well. If anyone has any advice for this situation I would be extremely grateful. Thanks!