i'd choose some different doctrines in all honesty;
a) carapace armour: all well and good and probably needed in your case... just keep in mind that for every 3 units you buy the carapace armour for, that's 1 entire 10-man squad you're
not taking because of it!
you need to remind yourself you'll be short on boots due to the much higher pts cost of your basic grunts...
b) close order drill: is more of a handi-cap than a help really... unless your opponent doesn't have a single template and/or blast weapon, it's best to actually avoid this doctrine at all costs! (ie: the only reason my lawn darts use it is because they
must deep strike into close order formation!)
c) rough riders: are a true 'one-hit-wonder'. they'll be gold the first time they charge! after that, their lances are used up and they're simply expensive punching bags for your opponent to happily beat to death! perhaps 1 squad to act as the 'knights' though.
hardened vets, while not as fast, are a better option IMHO - especially as you can give the sergeant a power fist!!!
d) hardened fighters: again, watch your pts cost sore and for little gain overall! the best thing it'll do is make your opponents hit you on 4's as well... again though, it's not something you want to give to every squad, else you'll litterally end up with only about 55 men in your army!
e) warrior weapons: handy for an assaulty army!
one way to get around your potential lack of bodies, is to take both the independant commissar & conscript platoon doctrines... think of them as a low-born knight leading the peasent rabble to the slaughter?! handy for throwing at your opponent's best assault unit as the conscripts will keep fighting untill pretty much every last one of them has been killed.
priests might also be a nifty idea as they would undoubtably be the ones who've whiped the low-born soldiers into a frenzied state of bloodlust!
cheers!