I had one for a while and wondered if the horse power of the 790 (3005) was needed, my 770 had as much power as it could use, even with a 1,150 pound backhoe on the back. The only weakness on mine was the Model 70 loader... which your's doesn't have.
About the leaves....If you look closely, you can see that the leaves on the trees have yet to fall. I don't know where you're from but here in Maine we tend to let ALL the leaves fall and then rake them ONCE.!!:
And about the Model 70 bucket....The guy I bought the tractor from called that bucket "junk." He has a lot of tractor experience and apparently, you do too.