Classic Range Rover V8 - buy or run?

[Irish]

All,

I have been offered a V8 Classic for £3k. Sub 100k miles, new gearbox, a few cosmetic issues but appear running well.

the issue is I need it as a holiday car. It will only get used ever 6-8 weeks. Is that nuts? I hear these don't like sitting around.

Chassis is good but headlining sagging - any thoughts on the cost of a fix?

Thanks.