Having had a kind soul hit my passenger door I am about to buy a new (second hand) one and replace it myself. Any advice on the best way of doing this and tools etc would be gratefully appreciated. Car is R50 - 2004.

Here is a start! :)
How to remove the door brake/check strap:
Door check straps, anyone changed them? - Page 2 - totalMINI Forums (http://www.totalmini.com/forum/42-2001-2006-1st-generation/10469-door-check-straps-anyone-changed-them-2.html)

Door Panel Removal
Mini Cooper Door Panel Removal & Sound Proof DIY - YouTube

Hi

Make shore you buy your self some low tack masking tape. cover anywhere you think you might need to protect your paint better to damage tape than paint.
You will need to adjust the window as well.
Get your door adjusted correctly first door shut gaps and closing properly then adjust the window or you might brake it

I used a trolley jack and a bit of 6x2 wood and a towel to support the door makes it abit Easyer to handle make shore you have a helper

http://www.mini2.com/forum/general-discussion/189676-2003-mini-window-height-adjustment.html

Thanks for the info guys. How long do you suggest it will take from removing to replacing door with maybe a little bit of messing about?