Phaeton,
Totally agree the stress on the top of the shock pin / eyelet option is the wrong solution and would apply stress in the wrong way to the shock body, If the shock is going to work correctly in this laid position it should be a Rose Joint / Spherical bearing to take the stress and motion on the shock, if there was more space you could bring the shocks inboard and use a push arm and cantilever to the shock and then you could get away with a standard eyelet/ bush on the top.
Dave over at Dampertech is a top guy and helped me a lot when I was working out the correct spring rates for the buggy - FAR FAR better than the idiots at AVO! - definitely worth a chat, plus the kit from Dampertech can be stripped and serviced rather than being replaced so buy it once and just service the dampers in the future!
Working out the required spring rates is pretty straight forward (I managed it so it cant be that hard!!)
Rich