Of course you can play successfully with it. You could have done the build a bit better here or there, but i see nothingthats really crap. With the high INT you can also boost Outdoors and First aid to a high %, which helps alot.With your 5 Charisma you could even think about getting the slaver perk (even if thats not real merchant like^^)and get yourself a pair of slaves. They are useful not only as cheap guards, you can let the mine ores and minerals too.
Thanks; I'll stick with this one then. Out of curiosity, will the Slaver perk negatively affect my karma/reputation too much?