I have, and enjoyed it enormously - but the flying is demanding, and few of the airfields have fuel.
You're talking about a heavyweight aeroplane that isn't known for it's short field capabilities, with a pilot who (and you clearly recognise this yourself) isn't all that experienced.
Go for it, but I'd advise against landing at smaller fields like Glenforsa(Mull), Plockton or unsupported fields like Broadford (Skye) and look to long runways and ground facilities - such as Prestwick, North Connell, Stornoway, etc. Basically places with at-least 900m and somebody on a radio.
G