Unimog Club UK

Hi everyone,
This is my first post. I've been interested in Mogs from a distance for about 30 years but never actually owned one. My only 4x4s have been numerous landies. I have a requirement to launch and recover trailered boats up to around 8000kg on wet concrete launching slips. Also I need a mobile crane facility for lifting boat engines in/out and possibly small boats up to 2000kg. Occasionally I have to recover trailers from muddy fields also. I would love to be able to lift 10000kg at 6m radius but that's a ridiculously expensive crane and I'm not sure a mog or my budget could cope!
I thought I'd bought one last year in Scotland but after spending all day on the ferry and driving up there someone offered him slightly more and closed the deal before I got there.
My budget is in the £10k - £15k range but I'd rather not have to get involved with fitting the crane myself.
Anything from U900 to U1400 as space isn't an issue.
Any advice from Mog/Crane owners would be most welcome, I'm here to be educated. I don't have to have it this week as I've already been looking for well over 12 months already. Thanks for any help in advance.
Dean.

Thanks for your reply. Possibly just not practical to go for such a big crane then and also a bit expensive!