Plastic vs Wire crate??

[mfrank31]

I've posted before re my 10 month old rottweiler mix and his separation issues...since my last post, he has figured out how to bend his wire crate, escape, and essentially tear apart the bedroom...
I spoke to a trainer who is a family friend, who said in order to calm him down while crating him, I should do the following:

1 - buy a bark collar because apparently his barking only stresses him out more, so correcting the barking will keep his emotions in check

2 - switch to an extra large plastic crate, as that will keep him from escaping

3 - provide a cow leg or something equally tasty to keep him busy

4 - make sure he has at least an hour and a half of straight running everyday before crating him (i.e. ride a bike with him or jog with him etc)

It seems to make sense but, before I run out and spend $200 on a plastic crate and $100 on a bark collar, I had a quick question -

If my dog can bend the wire crate and is determined enough to get out, would he not be able to chew through the plastic one?? Or are they built against that kind of thing??

Any opinions on what the trainer said would be great, I just don't want to waste the money on the crate if he's just gonna chew through it anyways..

Thank you everyone, in advance!!