While you are enjoying this instrument get on the two year wait list for a double manual French or Flemish instrument. Acquiring and learning to play an instrument will be much less frustrating the simpler the instrument. A different approach may be to purchase a spinet, virginal or clavichord. All are less expensive than the above options. They are small harpsichords with one eight foot register.
Virginals are rectangular, have a keyboard to the right and pluck the centers of the strings.
A clavichord can also be an interesting starting option. Though they require a different playing technique they hold their tuning and few moving parts to maintain. Stay away from Octavinas. They will not accommodate much of the literature due to their short keyboard range and exclusive four foot register. It is very important to buy the highest quality instrument you can.