Just make a desolder pot.
Take a lump of copper, brass or iron - with a diameter of 15..20 cm and about 5..6 cm high.
Best way is to make it with a lathe and mill the bottom plane. It should be placed on a hot plate and filled with solder (buy in bars from a plummer supply).
You could start with a 3..4 cm high lump and make a ring of plate metal outside its diameter to make the pot and weld or screw it to the base if you haven't got access to a lathe.
It should look something like this:
Use liquid flux and a stainless steel palette (don't use it for food afterward) to get the dross out off the bath when needed.
To use it, just fire it up and when at the right temperature, dip the solderside of the PCB while removing the component in question with a pair of pliers or similar tools. Use a barbecue glove or a welding glove to keep your pinkies... Well... pink.
Allow plenty of time to cool the pot afterward and don't leave it unattended where kids or (other) flammable material are around.
A gas stove or even a camping stove may be useable too, if you don't have an electrical one.