DIY Solar houston – experiences ?

Can anyone please share their personal experience or guidance on a full house DIY solar system project? I've done some research and based on my math if I go with any external company I will end up paying 60% or more in profit margin and it will take me around 30 years to break even. Don't get me started trying to understand why so expensive.

That being said I am inclined to go the DIY route as I am planing to source the material and labor in a very reasonable priced way. This system is just the panels connected to the house and back into the power grid via the inverter, no batteries.

But the key to this entire DIY project to be truly successful and cost reasonable is securing the service of a qualified and experienced master licensed electrician who can supervise the job, do all the paper work, permits and make the final connection into the inverter and the electric grid.

Any recommendations on where to get the materials and any recommendations on the installers and electrician ?