Q 98 How do I go about increasing the CR of a golem without increasing their size and the racial HD is maxed out?
Apply a variety of templates. A good place to start is Soulfused Construct (Magic of Incarnum), which makes it a Living Construct, thus allowing you to apply templates that can be applied to "any living, corporeal creature", which seems to be a lot. Probably only acquired templates, but if you're the DM and are cool with stretching the rules a bit, you can give, say, Half-Dragon to an iron golem forged in dragonfire and tempered in dragonsblood, or something like that.
Q99Is there any way to pick up Stunning Fist or Combat Casting as a bonus feat while progressing divine casting (or without spending a level), and without having to spend other feats to get there (since that'd defeat the purpose)? Character already has Improved Initiative, Law Devotion, Educated, Adaptive Style, Knowledge Devotion, Weapon Focus (twice, in different weapons), Improved Unarmed Strike, Blind-fight, Dodge, and Die Hard, if prereqs matter.