Leon,
Go for 240, 400 and 600 (or fairly close). If you can get anything finer (say 1,000 or 1,500) grab a sheet. If not, Theres a website where its 79p a sheet including p&p or thereabouts. Try to grab some spray adhesive (photomount) or a bit of double sided tape if you haven't already got some. Then you'll just need some board to stick down on. You will need patience and care the first time you do it, but trust me it works.
Next lesson after that is to carve feather sticks with at least one complete circle on each feather (two is better)
. The only way to do that is sit in the garden and practice!
Red