Believe it or not, that is quite an easy repair to do yourself.
Buy a leather and vinyl repair kit off ebay (about £12). That will repair the actual holes really well. For the dents, you can do a couple of things. One, is inject something like silicone under the surface to pad out the dent, the other is to take the whole panel off and push it out from behind.
Give it a go yourself before you call in a pro. You're not going to make it much worse if you bodge it up