Who might help Harry in 'harry builds a house fanfiction'?

Dumbledore might help from beyond the grave, in a sense. Harry could discover some of Dumbledore's old notes or memories that provide crucial insights into building a powerful and controlled bomb. And perhaps some of the more eccentric professors at Hogwarts, like Professor Flitwick, could offer their expertise in charms which might be needed for the bomb's construction.

Hermione would be a great help. Her vast knowledge of magic and books could provide the necessary information for building the planet, like the right spells and magical theories.

Dumbledore might help in a spiritual or advisory way. Even though he's passed away, his wisdom could be passed on through memories or some magical means. Also, Hagrid could be a great help. He could assist in building areas suitable for magical creatures with his love and understanding of them.

His friends like Sasuke and Sakura might help. They have different skills that could be useful.

His best friends, Hermione and Ron, would surely help. Hermione could contribute with her intelligent ideas and knowledge of magic for construction. Ron would be there for the physical labor part, using his strength.

Some of the Hogwarts professors could also assist. Professor Flitwick could use his charms expertise to add special touches to the city - ship, like making the doors open with a unique charm. Professor McGonagall could use her transfiguration skills to transform materials into the needed shapes for the construction. And Neville could also play a role. He has grown into a powerful wizard, and his knowledge of herbology could be used to create a beautiful and functional garden on the city - ship.

His friends Hermione and Ron would most likely be his allies. They have been with him through thick and thin in the original series.

Dumbledore (if he were still alive) could be an advisor. His wisdom and experience would be invaluable. Also, some of the Weasley family members like George, who already has experience in running a joke shop, could bring his business acumen to Harry's company, helping with sales, marketing, and product design.

Maybe Harry decides to build a house in a magical forest. He uses his magic to gather the materials like levitating the logs. He might also face some challenges like protecting the construction site from magical creatures that want to play with the building supplies.

The Ministry of Magic would probably oppose it. They are always concerned about maintaining the secrecy of the wizarding world and a stargate could potentially expose it to non - magical beings or lead to unwanted magical interference from other realms.