I have been doing some moving of both fish tanks and ponds. I guess I am lucky as I have extra tanks and also preformed liners/water troughs. I use some of the old water in the pond switches, but the aquarium was a complete new set up as I went to a dirted planted tank. I had to do the complete cycling with that one. Thankfully I either had enough pumps/filters I could just use
them with old cycled media so I still had active bacteria working even with the new water.
If you can get ahold of some fish tank filters either hang on back or a canister, borrow one if you have any fish friends, and try to hook it up to the pond now to get it cycling then you can have it on a temporary tank when do your switch.
Depending on how big your pond is, you can usually get ahold of some 55 gal drums for $10 /drum, wash real well and store your water in those, but if they are sitting stagnant with no movement for several days, probably a waste of time to save over just adding fresh water.