Hi Pupjoint,
you choose your kits as I do mine it sounds - I always seem to pick kits that are for experienced modellers, which I'm not :)
I can't help with your build directly as I haven't come across that kit personally, but here are a couple of tips if I may:
1: If you are gluing wooden frames, metal or plastic (of different types) in to an ABS hull using epoxy (Araldite or similar) then I highly recommend "keying" the area inside the hull where the glue will go with 80 grit sandpaper, thus giving the glue something to grab onto. It will grab a smooth surface, but not very well and will hold a lot better after keying. This is also true for metal or plastic fittings and you can key both the metal/plastic and the hull in this case. In the hull of my Zwarte Zee, which I salvaged after it was started by someone else, I was able to remove the frames from the ABS hull very easily as it wasn't keyed.
2: As I mentioned before, I have no knowledge of the Ransow, but if the instructions for that, like my Zwarte Zee, do not have much in the way of a build order, be very careful that you leave yourself room to add other items as you go. Specifically I'm thinking of what looks like it might be a bow thruster in this hull and make sure that you have space to get it in place easily after the frames are in place. Of course you have the other build to follow which always helps :)
Good luck!