Two Canon Printers for repair or spares (Hoole CH2)

I have an iP 4000 and an iP 4700. They have been in the attic for some years. From memory, one of them had a full waste ink tank and one had a misaligned ink cartridge carriage, but both faults may have been on one printer and another fault on the other. Large number of unused compatible cartridges (about 40 PGI-520, CLI-521 for the iP4700 & about 10 for C-3/3e/5/6/8). Prefer to go as one lot but might split