Hi and welcome back!!!
no problems with getting bike on rearstand by yourself. Here's what I do:
1. while bike still on trailer/truck, put stand where you want to park bike
2. roll bike off and towards and past stand so stand is behind rear-tyre
3. hold bike's rear seat with one hand, keep it balanced vertically (might want to practice this lots in garage)
4. reach over with other hand grab stand and position under rear spools. Lift slightly so bike is evenly supported
5. remove hand from back seat while keep pressure on stand.
6. use both hands to push down on stand.
Practice #2-4 with placing stand on right of bike or on left of bike. Along with using left or right hand to hold bike while reaching for stand with right or left hand. Certain combos will be more comfortable and easier for you. Have fun!
BTW - Ninja 400 is faster than SV650 on track.