I'm sure you know all of this, but it merits mention, just in case. California now regulates wood burning, so much so they have DEQ staff issuing citations for burning your woodburner stove.
More places are beginning to adopt these measures in line with tougher PM restrictions.
Dude...I love wood burning stoves...part of my chores growing up was splitting and stacking wood...
But two things to consider...4K is a big nut for something that may be restricted. If you plan to leave your lovely home (mean it...classic), having a wood burner may be looked at like a boat anchor.
I replaced an old cook stove in my cabin with a Propane...but back then I considered wood burners too. They are awesome. For the reasons above I chose the Propane Unit. I was able to remove obstructions with a plasma cutter, and chisel. I ended up with a straight shot, and the chimney was big enough to accommodate two SOLID liners (not the accordion deals)...had to use an intake line and a separate exhaust line. I know they sell units with the intake and exhaust integrated in one pipe now for NG/Propane. I had my gas line inspected by the Propane company, and the rest of the installation by a regular building inspector. Inspections cost me 200 bucks. My unit Does 40,000 BTU. Not the top end of a wood burner, but that shit works, especially with the blower on.
If you are set on wood, I'd really let someone come do it...with wood you are dealing with combustibles up the exhaust, and secondary burns, etc...mistakes there can be dangerous...with gas stoves...you are less likely to unwittingly make a mistake.