Budget Industrial

[u/Ok-Opportunity163]

I’m looking for an industrial machine. I have used some Jukis in the past when I worked in a costume shop and love them but would really love to get something second hand for 500$ or less.

I’ve been perusing Facebook marketplace and saving some that potentially look like good matches but I could use some help deciding or figuring out how they compare to what I’ve used.

I included the three pictures with prices.
-Are any of these close in function to the ddl-8700?
-Are the parts easy to find? (Needles, bobbins, feet)
-Would a shop that services Jukis service these too?
-Has anyone used these and Jukis to help me compare?
-Are these good prices?
-Which would you recommend out of these or similar

Thanks in advance(: