Parking lot behind a building works even better.

https://www.flickr.com/photos/76579732@N07/

 

budgie cords and mechanics wire is great you don't want to remove or unhook any more than you have,
treat it like you were a flat rate mechanic.

our goal it to replace the head gaskets, nothing more everything you take off you will have to put back on.

Take plenty of pictures before you start for reference.

One other thing might help if your the type of person not good with bolts and sizes,
lay all your gasket on a piece of card board and trace them, when you take a bolt out; stick it in the appropriate hole in the cardboard.

even if you have to go out of town to find a storage locker,
there isn't a lot of tools or supply's you need the will all fit in the back of the disco.

just look for one with a light so you can tap into power if need be.