I've been working @ a busy ACE/Home-Decorating store for over a decade now, most of the time in the Paint area. Bottom-line...you've done good prep the way it sounds, so it doesn't matter much which stain you use! We go thru a fair amount of ACE's Wood-Royal stuff for decks & fences. (Our main lines of stain are Sikkens & Penofin, but we stock ACE's as well) Superdeck is another good stain. For a fence SOLID stain, it doesn't really matter. YES...you can use a Latex solid over the old Oil. * Solid Oils are rapidly vanishing from mass-production. Sikkens, ACE, & many others have been phasing them out for a few years. * "Hybrid" Oil/Latex chemistries dominate now. Faron

walkway is along the garage. We were not planning on planting anything along the fence because there is a tree in the middle. The house is on a private drive and the fence is only exposed during the winter when the leaves are gone.

IMO a fence that is stained the color of tree trunks is best in order to get it to fade into you landscaping. Pine on your ceiling is guaranteed to mold in Florida. Use a synthetic or aluminum that is finished to look like wood https://www.qualityedge.com/soffit/porch-ceiling/ https://www.qualityedge.com/underdecking-product-details/

Sorry I don't know for sure, however, your stain will be influenced by the current color of your wood, so you may have to do some testing. If you consider Duckback, it's only sold at better paint/hardware stores, they may be able to guide you, or you might be able to email them with pics of your yard to the HQ and get some info back from their technical people.