Our Tiny house

Ok so I’m not going to play I need answers because I have questions because I’m wondering 💭 how much a hound with this design and architecture would cost to build. So I’m planning on building a house 🏡 in the Caribbean but I just need it for a vacation spot where I can come and stay for a few days and probably rent out if anyone is looking for a spot but please check this’ll video out cause I would honestly like to know …

I know the solar energy system cost at lease $3500 right ? Like how much would lumber 🪵 and the plumbing system would cost to even get this project done ?