Just another thank you to all who have chipped in.
Insulation was raised by one poster, on Gemini it is Rockwool which I believe is preferable as not a fire hazard with electric cables buried within. Battery count, i think is 3 leisure ones
Yes 2nd boat does look like poor use of space and good point about RCD which I would not have thought about, thank you garibaldi.
Gemini has pump out loo which I prefer, but I know this is contentious point too, ( feel free to discuss ) I would not consider basic Porta-potti
Overall am leaning towards first boat, Gemini, thanks to all above posters, I can now see the difference . However the engine is older, ( Perkins Perama) should I be worried about that?