If you are going to try to have it insured under home insurance as hobby material then make sure you give them a heads up on what it is you are doing and the estimated value of materials and hardware
on site. Otherwise, being the money
grubbing pencil pushers we all know and love, they will limit any loss to some minor amount as noted in your policy. My dad had his gun collection stolen, and because he didn't send them an itemized list they paid him next to zilch. This was for a collection of very rare Lugers. Something like $125k was paid off in $5k and there was nothing he could do about it.
You will end up paying them a higher premium but it may be worth it.