Re: Costs of airplane maintenance
the price for a twin engined 787 jet, is about 1000 of such houses. This does not make any sense to me.
Go on, then - you try making a near-custom[1] vehicle of that sort of size to aviation requirements within that sort of budget. Remember - the provenance of every single component must be tracked from raw material to end-of-life.
Youi'll have spent that money before you even think about finding out if it will fly.
Vic.
[1] Modern airliners are very low-number production anyway, but as the aircraft are built for a specific customer, they're pretty much custom machines, even if they start with a standard design.