You may need a decent repair manual too - not Haynes.
I think Bilstein dampers etc. and a limited budget may be mutually exclusive terms. Try a search on the forums here on springs and shocks for clues. Don't use the American forum for this or you'll get completely confused. Many people here have Koni adjustable shocks and Kings springs which are probably the most affordable.
I'm just guessing here that you are in the Melbourne area and in the Victorian MX-5 club - it pays to belong
