Ed, I hope that works out well for you. A couple of the things you said would give me plenty of worry. Bleach can really be too caustic for your Filon roof material and there are approved caulks and sealants for your coach. Home Depot tub and window caulking is not really appropriate for this application. And, the Henry's is good for buildings that don't move down the road - but RVs???
There are a couple of YouTube channels that specialize in RV roof repairs and resealing. I know you've finished and are happy with the results. I'm just saying that anybody coming along and seeing your post might want to check out the approved processes and materials for such repairs.
Hopefully, all of your fixes will work great and for a long time.
Here's a link to the PDF for the proper sealants and caulks for your 2001 Journey DL:
https://www.winnebago.com/Files/File..._p_sealant.pdf