Joy to the world my car is crashed...Kyosho neo ke25 engine cracked

KE25 Conrod Is broken after hard crashed at Xmas day.   Does it Worth to replace the Conrod, replacing the whole engine,  convert it to brushless or give up Kyosho buggy upgrading a better band?

Still prefer a pull start engine, and gonna to get a better engine and convert it to 2 speed if parts available.  I run it more like a rally than buggy style, bushing but no jumping.  Any suggestions Ching?