It's morally good to fulfil promises - why not do contracting for these two clients - see how you like it, after a while figure out if you want to and can find

It's morally good to fulfil promises - why not do contracting for these two clients - see how you like it, after a while figure out if you want to and can find a way expand the business, or find another w2? You could tell your current employer you promised these guys, so you want to do it for a while, and ask if the $200k can be delayed 6 months? You can ask your employer - Surely they aren't wanting to pay you money to break people's trust?