The Energon Pub

I was digging though my G1 toys that are not on display and I ran into my Shackwave. (which I painted to look like Shockwave ) Then I ran into 3 problems I hope you guys can help me:

1. The head has a problem going in and coming out during transformation.

2. The legs don't like to stay extended.

3. Is their a way to gut thew electronics from a KO Shockwave and put them into my Shackwave?

Help please...