I also have a half acre. One side and all across the back of the houses is mature woods. Plus I have a dozen big trees in the yard, some over 100 feet tall.
Leaves are my hobby.
When I moved here 30 years ago I was young and energetic. “I’ll rake them onto tarps and haul the tarps to the front”. 50 some tarp loads later and the tree lawn looking like a small mountain range of leaves I decided to come up with a better plan for next year.
Being an engineer and machinist I built my own walk behind blower. I designed it quite differently then the ones you can buy. They all use high velocity blowers (which whine like crazy) that have an exit for the air about 5" square. Mine has a high volume blower with an exit 12" x 5". I made a 2 muffler exhaust system, is is very quiet.
It is fierce. It will knock the legs out from under children and terrify small animals. If you dig into the ground, it will peel a strip of turf up and fling it. It works well in my yard because I can just blow towards the one side and the back into the woods (or as my Thai wife calls it, the jungle).
Alas, the knees are too bad to do this anymore. So I just got a tow behind leaf vacuum with a 5hp engine that attaches to the riding mower. It is awesome. It takes longer than my efficient blower, but I can sit down and only have to get up when I dump the leaves. I bought it used from Craigslist and all the best ones at reasonable prices go immediately, so I bought one that uses 2 large trash cans.
I knew it was too small, but I like to build things. I built a galvanized steel top for my 3’ x 4’ yard wagon and transferred the blower to it. It has a volume of a cubic yard (200 gallons in leaf vacuum lingo). I picked up a more flexible 6" hose to go from the mower to the blower inlet.
It works very well. The mower mulches the leaves first, then the blower mulches them again. Taking a hint from my neighbor, I run the mower around the yard first without the vacuum to add another layer of mulching. The leaves are compacted very tightly. The neighbor says the pre mulching cuts the volume at least in half compared to just vacuuming them in the first pass.
Next year I will make the wagon larger and tapered (to slide the compacted bale of leaves out better). Electric start would be great also, these blowers are tough to pull start since they are hooked to the motor with no clutch and operate when you are pulling the motor through.
I looked at a lot of vacs, if you are interested, I like the Cyclone Rake. Nice design that folds up and can be hung on the wall after you are done. If you are gettijng by with one of those sweepers now with no shredding and compacting, this is the ticket.
Dennis