I am doing a hub seal replacement on my old Landrover.  Sadly I screwed up the new seal by putting it on too far, and then by trying to tweak it back out I wrecked the tension spring inside the seal.

It'll be a couple of days before the Landy specialists are open and I can get another seal.

The upshot is that I can't put the roadwheel back on because the whole rotating bits are in pieces.

Should I reassemble the bearings and the brake drum and the other lumps of steel, fit the road wheel, and lower it down?  Or can I leave the vehicle on the jack for a couple of days?

For safety I've put the roadwheel on its side under the chassis rail.

The jack is a screw-type from a toyota 40 series, not a scissor jack and not a hydraulic jack - ie you have to turn the handle to raise and lower it.

Vehicle is parked on a level concrete pad on private property and there's no significant risk of pushing it over.

Question is similar to http://mechanics.stackexchange.com/questions/17637/leaving-vehicle-on-4-jack-stands-several-days but its about ONE jack not four jackstands.