Could you please assist with the questions below

Scenario: I'm a Tier 1 general visa holder route to ILR. I'm planning getting the ILR next month.
My family are outside the UK and I'm planning to apply for them as ILR/settlement visa holder.

Please based on the current changes:
1. Please what is the maintenance fund for 3 dependants? 1 adult and 2 kids
2. Does the kids needs to pay for NHS surcharge?
3. If they're applying outside the UK, what is the visa fees?
4. Please assist with the form and current guidance to follow.

I look forward to hearing from you

Many thanks

Dependants applying outside the UK

Your family members must apply online.

They’ll need to have their fingerprints and photograph taken at a visa application centre (to get a biometric residence permit) as part of their application.

They’ll have to collect their biometric residence permit within 10 days of when they said they’d arrive in the UK (even if they actually arrive at a later date).