I would not trust that fork for a single ride! The frame does not look too bad and
I have straightened worse. However...
To implement the repairs yourself in not a good idea unless you know what you are doing and have the tools to do it. If you can't do the repairs, an expert will have to be hired and that will cost lots. Finally, if the frame is not valuable, then the cost to repair might exceed the weight of good sense.
Trust the frame? Not a problem. Trust the fork? Not a chance!