Hi Trucker,if you look into beyno1968's built, you can see extended stations which were sticked (and glued) in to the Deck. Probably the easiest way. As your stantions seem to have the needed length, you can stick some MS rod inside for extension.
https://www.modelboatmayhem.co.uk/forum/index.php/topic,61309.50.htmlI have another examp,e where the buider used an aluminum angle profile and bult the stand (deck connection) from it. Just don't know where it's from, I try to send you a pn.
My tyne is progresing 'slowly but unsystematic'. As I work and develope on boathouse, slipway and lifeboat in parallel there are long 'thinking' times inbetween
The motors to the propellers are mounted, rudder built and mounted but not the connections to the servo, as all depends on the space I need for the trim plate movement. Which, at the moment is handled by 0.5mm stainless steel rod running in various sizes of ps pipes. But the bow inside the hull ana a propper movement ist tricky. Nevertheless, I think I have now two diferent solutions wher at lest the non favored will work, I just have to come up with the manual movement part inside the hull.
The slipway idea is already a bit further than the last image and I wait for some test cutouts from my colleague with the laser.
Besides all,I was asked to write an article about the built of my pontoon, so I had to finish the 'non-invasive' clamp idea which will not do any harm to where it will be mounted.
Best refards,Joerg
Image: a fantastic morning at the pond with my LÜBECK II (Sievers, Hannover), WILMA SIKORSKI (Graupner) and my pontoon, mounted with (still too long) metal grabbers.