Hi,
What did you decide on? Just to add my 2p worth. I have a 74 ex MoD 109. It was on standard H/D well rusted springs when I got it and there was virtually no suspension movement unless it was loaded and even then it hardly flexed at all. I stripped it, rebushed it, all new bolts and U bolts and fitted paras - Rocky Mountain up front and Paddock/Craddock Blue on the back with Pro Comp +2" dampers. It sits square and slightly higher and the ride, articulation and control on and off road is much better. The Pro Comps are in my opinion the weakest part of this - they are too stiff under load and not stiff enough on the rebound. A better damper would improve things again I'm sure. Also it is very easy to fit the Pro Comp dampers upside down - (up front on a 109 and both ends on an 88 - the rears on a 109 can only go on one way round.) If you fit them the same way as the old one came off you have fitted them upside down and oil drains away from where it should be and there is no, none at all, damping action - I know - I did it! The thing was like a Kangaroo. As for tyres I now have a set of 130 rims (6.5 x 16) with 9.00 x 16 Michelin XCL's. Lovely!
One last thing - one of the best and easiest upgrades to any Series Land Rover is to fit a steering damper - steering seems unfeasable stiff at first but you get used to it and all the shake and shimmy dissapears completely.
If any one can suggest a better damper I would like to hear from them.
Cheers
NigelM