My room mate is new to video games and trying to bring her up into an legendary end game static group. She made a PDK paladin about 6 months ago and got a +8 supreme tome so she's stuck with it. She didn't really play but coming back and now would prefer to be INQ. She has a lesser heart for a respecc at 20, so she could salvage if the the 1/14 split is not already too late. I'm thinking a CHA to damage, 1/2 INT modifier to damage diplo INQ with 5 last 5 levels of rogue could do alright. She would have evasion to go with the light armor sets, really good saves from CHA pally based, Holy Sword spell, throwing out diplo automatically, trapping, could probably hang ok once she has the end game gear.
Does this seem reasonable? Better ideas for planning this toon for end game sharn, ravenloft, etc?