40 items for a large yard way too less,

-Increase outside furniture capacity by 50% (or whatever appropriate)
-Cancel the 10 same type item limitation
-Add extra large pond (2x larger than current large pond, with multiple options like U shape, L shape, l shape etc)

Also the suggestion in another thread, make aethernet shard and mail box (even outdoor guest book) as a part of plot instead of independent furniture (can still keep the mail box as decoration, but add the function to plot)