I read somewhere that the cost of one suspension strut was in four figures, and that there are no aftermarket suppliers. The car was sagging at one corner, and I knew the strut had failed. At 20 years old, the other three struts had a limited life expectancy. My insurers valued my car at £1100 at the time, so converting to coil springs and shock absorbers was a no-brainer for me. I used Toyota and KYB components and my insurers did not consider it to be a modification. A good result all round.