Hello,
Yes mate that will be fine, in fact you should always use some mono backing when you're using braid as the braid has doesn't get a good "grip" on the spool and the whole lot of braid can slip around the spool under any load....I found this out the first time I used it.
A mono leader wil be ok and it will help protect the last few foot of your braid against abrasion. I don't use one though if I'm fishing over clear ground or sand and I find that the 30lb braid is fine with leads of 3oz or so.
I also use braid for spinning and plugging now and although some lads I know use a short "rubbing" leader to protect against abrasion, I seldom use one. Some of the plugs I use, especially the ones with middle treble hooks can catch on the strands of the braid and then I may use a few foot of nylon to stop this.
A few tips that may be usefull;
Don't overfill your reel as you will suffer the dreaded "windknots" and tangles, it's always best to slightly underfill your reel. Also when I'm casting lures as soon as I've cast I close the bail arm by hand and give the braid a little tug to prevent any loose loops.
I like to use a carp anglers "spodding glove" to protect my finger when casting as the braid can cut your finger. The one I have is made by Gardener Tackle.
Carry a little bit of dowel to wrap the braid around when your breaking out of snags. This will stop the braid from biting into itself. If I havn't got my dowel I wrap the braid around the rubber butt cap on my rod. If you do this be carefull as it can cut through the rod grips.
A good fixed spool with a good line roller on the bale arm is handy as it helps to prevent any twists.
Because of the almost zero give in the line go canny when stricking or playing a fish.
I like the standard Whiplash and Powerpro braids.
These are just my opinions though and I'm sure some will disagree but I hope I have been of some help.