How can I add an option section to select 'Consumer' or 'Trade' in Shopify?

what can be done to this requirement,
in the account setup process, we will need to allow the user to specify ‘Consumer’ or ‘Trade’. If Consumer is picked, they will then follow a standard checkout process. If Trade, the new account needs to be verified by me before confirming the account. All Trade accounts will have individual prices assigned to them and orders will not be checked out, instead, the order should be emailed to our account manager to process offline.
Consumer orders will be processed through the checkout using displayed standard pricing.

We are opened to any help provided it works thanks