Ok... perhaps I can do something... I cannot mail you private here as I am new and private mailing is only when you post 5 messages here... but find me on BGG as Ren2 greetings... or I have to post 3 messages here so I can post a private message...
Well, personally I have created class compendiums for all the classes I am using in my home game. That way each player have a good overview of the available powers for his or her class. As I have them all in Word format, it is quite easy to copy and paste them into any character sheet format you want to use. I have also updated the rule text and all powers with the changes I have made. So far it has been working quite well, and I do not feel I miss the Character Builder as this gives me even more flexibility.
Yeah, I simply wrote out my entire system using OO Writer, with power blocks, etc. I did make a fairly simple character sheet where you can do some basic selections and it will calculate numbers, and then its pretty easy to paste in things like powers. The sheet is in OO Calc. You can find similar things for 4e out there, and its possible to paste in power blocks from the Compendium if you have access to it.
Character builder is pretty adjustable via CB loader but I haven't tried to change too many of the fundamentals I have noticed some definitely in there though and so they are adjustable. It's a motivation thing though his 4.75 is not my general goal but I do like some of his curve adjustments from a OCD mathematical point of view.