I've found that really.. pre-ng+ it's just about upgrading what you need upgraded. Base it on your play style. I have a royal as well, and i kinda kept faith/intelligence equal, upped strength a bit for winged spear, end and vit a bit up and a lot of dex.
I run around switching between winged spear +3 and some bow +2 right hand, spiked shield (can almost wear purple flame shield) and some magic relic. Snipe / magic when needed, otherwise spear + shield (: Light armor, thief ring and the +30% hp when soul thing, switch to the +mp regen when needed.
I'm not much further than you, but you really don't need to change much. Just keep upgrading the spear to +3, get your shield up to +6 and grab the purple flame shield from 1-1. 1-2 is pretty easy, and I can tell you how to kill the red dragon if you want
Lots of items to be had from killing it, plus 8k souls for kill + demon soul.
Demon's Souls isn't really walkthrough-able outside of bossfights and hidden items. It's all about your play style and skill, and fixing what you're having troubles with. Hard to give a guideline for items or stats :\