I own Komplete Ultimate 9, its NOT my go to program. Its the one program I could "do without".
What instruments do you use the most on the JV1010? (I still have one in my rack BTW)
Access what you "really" need, maybe buying dedicated synths will be a better option.
You're a Splat owner? Then you have Dim Pro and Rapture (those were in the bundle, right?)
Can't go wrong with EZDrummer, but Sonar had Session Drummer and the XLN drums.
$800 would upgrade your computer a bunch, then dig into the synths you own and decide on what you "need"
T