One of the big problems with the Form 3 is the requirement to empty the print tanks if you don’t print for a long time.
In your case you will end up with tanks expiring while sitting on storage if you don’t empty the resin out of them.
The Form 2 does not have this problem.
We keep a park of 16 tanks fully loaded, ready to use at all times. Some tanks seat for months without being used ( because some resins like black and other regular resins do not offer objects that stable enough in time, we cannot offer this to our customer and use these only on special request ).
I would highly recommend you to keep your workhorse and carry on using it until the support ends.
By the way, if you think the Form 2 is not reliable, you might think twice before going to the Form 3. Look at the ratio Form 3 complaints vs Form 2 complaints on this forum…