Answers

Call Ryan at 877-788-5647. They can probably fix it for you.

No. Use Energy Seal or Perma Chink.

Call a mold expert to get rid of the mold spores. Call Ryan at 877-788-5647 to fix the logs.

You probably will not get the water stains out of the wood. I would recommend having the logs replaced. Call Ryan at 877-788-5647.

Call Ryan at 877-788-5647.

Yes, call Ryan at 877-788-5647.

You need to use fur stripping and get it plum before you attach the drywall.

Red pine. Do not use White.

Call Ryan at 877-788-5647.

Not sure what you mean by safe, but any latex stain is ”safe”. Oil is not.