I have a drive-on car hoist for sale. It operates from any compressor (even small ones). Has mechanical safety lock - a must for any half-serious garage. It is extremely robust construction. I don't know any specs but it easily lifts my wifes VZ wagon. It simply sits on the ground so there is no 'installation' as such. No posts for doors to hit. Call for more details.
Daniel 0437 500 128 after 6pm please or weekends please.