A few years ago now - about 3 or 4 - I found a Zwarte Zee kit on NZ's eBay equivalent (called TradeMe) that has been started, but was not complete.
Basically the ABS hull had been trimmed a bit and some cuts made into the hull where they shouldn't have been and the frames glued in (badly). I suspect the original purchaser had bitten off more than he could chew. I able to get the kit for less than 1/2 retail price as I recall.
Upon inspection I found that the frames were not square and because the hull had not been keyed for the glue I was able to pull the frames out of the hull and separate them, allowing me to basically start again.
I have not done a build log, so have no photos of the construction. In short I did not find this kit easy to complete. Billing suggest that this kit is for an advanced modeller and I agree - a far greater knowledge of ships in general and in model construction would have been very good. There was no detailed step-by-step instructions available, just a general and short list of suggestions, although the drawings were quite detailed. I found that not everything that is supposed to be assembled was actually drawn. Consequently while I say that it is finished, in reality there are a number of small fittings and such that have been left off. On the other hand I'm quite happy with what I've achieved and if I steps back a pace or two it looks the part! Running gear is a can motor from a 12v drill running through a 3:1 reduction gear. Power is from a 6v 5Ah SLA and using a Electronise ESC. On the bench at full throttle current drain is 1.07 amps which I think is more than acceptable. There is about 1Kg of lead shot as ballast and a 100g strip of lead to correct a slight list.
Today was the first visit to the lake although it had previously been in the domestic test tank (internal) and the domestic test tank (external (a small pool)). The first run went well, but was not without it's problems: Performance was good, full throttle is above scale and she responds to rudder input well - at least while going forward. Going astern is a different story! However I did have problems with the throttle control. Those familiar with Electronise ESC's will know that if the main battery for the motor is connected when the radio gear is turned on, the esc will do a short burst of forward then reverse to the motor. Unfortunately several times while out on the lake the boat went into reverse throttle spontaneously. Other than this happening it did not cause any problems, but obviously it's not right.
Previously while bench testing I noticed problems with the power supply to the receiver and eventually replaced the battery holder as it had previously been repaired. It seems that the holder had, over time, deformed a little and was allowing the batteries to slip a little. This battery holder was replaced, but it would seem that another problem still exists. However, I was unable to duplicate the new problem on the bench. I've done some mucking around and re-done the battery connections to the receiver switch (I'm using a connector like used on a 9v battery and the replaced connector was a bit of a bodge), so I guess we'll see what happens next time I'm out with her.
Anyway, a couple of shots of Zwarte Zee on the water: