I had my 4th flight today in the Hobbyzone Supercub, but i had a series complete fails and (kind of) broke it. I forgot to check the trim before launching it (i launched because i was on a sand-field and kept nosing over). Unfortunately, the trim happened to be all the way to the right. I tried to counteract it (hadn't noticed at the time), but it was't enough, and my plane "knife edged" Into a tree, which probably broke the rudder. I retrieved the plane and didn't know of the broken rudder at the time either, so i set the trim to the middle and launched again, and the plane still turned right way much, but cut the throttle and managed to land it. I set the trim all the way to the left, and it still turned right, and i landed it really hard, which broke one of the plastic gear fins, and slightly cracked the cowl. I noticed that, so i took time to assess the damage and realized that the rudder was bent to the right, and the tip of the push-rod was broken and wasn't connected to the rudder (big no duh moment for me). I went pack to my house and taped a half of a popsicle stick on both sides of where the rudder was bent. I also reconnected the push-rod to the control horn using a safety pin bent to make sure the connection wouldn't be loose. I left the cowl and plastic gear fin as they were as i didn't see the need to fix them. I went back out flew the plane, remembering to trim this time, and it worked perfectly. I flew until the motor cut out and glided it back in for a landing. While it flew well, i was wondering if i should replace the parts? I was planning on buying lipo batteries and a brushless motor, as well as servos for flaps and ailerons, and a carbon fiber rod to get rid of the struts, so i don't want to spend money to fix these things if i don't need to.
I attached pictures.
So to summarize, is it necessary for me to replace these parts? Thanks!