not have the 800k and will not be able to qualify on your own.
You will.have to pay to get an agent to help with bank account.
Then you will need an agent to fix your 800k issue.
You will be trapped on the agent wheel.
The UK embassies do not endorse income, so you cannot use that method to get your visa.
To qualify you will need the 800k the first year and simultaneously deposit 65k per month for 12 months without fail to qualify the 2nd year for income method.
If you use an agent you will not qualify for the 2nd year as you did not have the money in the first place.