Hi "Pinkie"
I have had one in the past and still look after it on occasion. It was a 1026, light armour with winch, although the winch had been removed. The numbering is quite complex as the models changed over the years and the separate designation for winch equipped models was discontinued, a bit of browsing should get you up to speed.
Personally I would get the model you want initially if you can as the parts to convert can get expensive. I converted from a light armoured (slant back) with a straight swap for all the parts required for a four door soft top with the rear cover extension. It included a windscreen assembly and tailgate and a lot of other parts, its not as simple as it may seem but at least it is simple to do once you have all the parts.
I much prefer the truck without the weight of the tin box as it is by far a better drive. If you are used to old landies then the weather protection is a bit like an old series landie with water and wind coming from all around you.
The later radial tyres are better for road use but the old bias ply (as long as there is plenty of tread) are better off road. Other things to improve it are later (A2) seats and mirrors and soundproofing!
The early versions have much the same engine and gearbox as the M1008 series of pickups but with permanent 4x4 and excellent suspension.
Easy to drive and brilliant off road but beware the width on narrow roads!
Iain