Reason behind me saying it will cause problems:
Depending on if your propshaft is original equipment or a replacement depends on how bad the rear propshaft will bind up if at all when the rear axle is hanging. This hanging will also stress the rear bushes which could be replaced for cranked arms to reduce the stress. Back to the binding problem the extended brake line and oh and there is this question of the hanging wheel that will have bugger all weight on it to give any resistance to aid drive which will just spin through the open diff. (sitting there spinning up diff centres is an amateur driving mistake ask any serious comp person, This will also damage the diff and you can expect bits to be flying through your diff pan or have a diff pan full of broken pins and diff gears).
So you need: A wide angled propshaft, extended brake line, cranked arms, longer springs because std springs will pop out and the fact that you have not really improved owt just spent £400 or £500 on bling when adopting a different driving style could probably got you through it. It does look trick but if thats your thing go for it! Ow I forgot some cranked arms you will need a polybish kit because the original mettalistic bushes are a loose fitment due to prro quality manufacturing so more expense. Well my vranked arms in the shed are cos they are ****e!