New 21C Driveway parking on slope

[Boketto]

I have my first trailer, a new 21C, Sept. 2022.
Man is beautiful, with all of the decorations/options my wife expected.... Ok...

My driveway is sloped and I need some help on safety issues.
Measuring at the floor, the rear-rear wheel center to the tongue-jack center foot are 168 inches in distance.


Extending a line from rear-rear wheel center at the floor to the thong-jack elevating this line end to level is 13 inches.
Appear to be 4.4 degree.


Adding a wooden block 13 inch high at the front and extending the power tongue -jack will do the job? (like parking on a level surface)


Will the rear-front wheels elevate and need some spacers? or this second axle will take care and drop some?


I have wheel chocks, see picture and I planning to get Harbor freight black solid wheel stops.


Final question, is this set-up to high to keep parked at home?


Thank you