What would be a realistic valuation for a '58 S2 109 pickup in reasonable Nik ??
Ie. complete, no mot and a few dents. Chassis is reasonable but will need work soon as will the bulkhead.
Cannot but think it is more hassle than it is worth at well over a grand .....

If you're wanting to buy it, ask if you can take it to a MOT test station first (at your cost, it'll be worth a £20 / £30 investment) then, when you know all the points its going to fail on you're in a better position to negotiate the price down.

As Series 1's are now as rare as hens teeth, the price of original S2's are going up - have a look on eBay at the completed listings and see what they are actually selling for.