FYI I bought some 3ton axle stands from halfords yesterday, which after using them appear to be completely adequate for the job. £19 (btw 3 ton refers to 1.5t each)
Screwfix had some 3ton, 'fold-up' stands :confused: for £19
Partco had some 3ton for £35+vat, but had no flat base (like 3 spikes)...