Genden, I have been where you are with caregiving and to say the least it is a daunting task. I have a Viking machine, I keep the dust and lint cleaned out. Oil a few small places and TRY to get her into the shop about once a year. Right now it has been over years and she still purrs like a kitten. Do what your heart tells you. What state are you in? If you are near here, I would be glad to come give you a break now and then.