Well I'd say it depends on the area you are going to be working with, more so the height, than the length too.
I had a front, gable end, and side grinder out and pointed for £1800.00 all inclusive, including his own grinding discs, mortar etc.
Looking back at it, if I had the patience and time, I could have completed it myself.
They guys came on site with pointing guns; whilst they used one, another was being filled up with pointing mortar.
http://www.amazon.co.uk/Roughneck-32100-Brick-Mortar-Gun/dp/B003CT4D22
Get the ratio right with sand and cement, and make a creamy pointing mix. Too much water and it'll come out like melting ice cream, and not enough water and it'll sit inside the gun and hardly move as you move along the joints.
Personally I'd say give it a go, preferably in a corner of the wall, and see how you go with the pointing gun.
Also don't rush to use a Brick Jointer; let it partially dry before you run it along the joints.
Good luck.