Good morning Ryan:
I'm not a dealer, but I slept at a holiday inn last night.
You need more machine than you want. New can be GOOD! Especially for a new sewer. Go ahead and check out the "4" class machines, set uo correctly for your need and shipped COMPLETE.
How many hours do you want to spend searching for a used machine? How many hours to research needles and thread and tension adjustments on your own?
A $2,000 TOP-OF-THE-LINE machine only will cost you about $35 per month over the next five years and then it's FREE for the rest of your life, or sell it for nearly the purchase price.
There are few 4 class for sale used.
That's because they are that good. and if somebody wants to sell, they go in days.
Buy new and get the dealer support you WILL need.
Just a thought for you.
Good luck on your decision,
Kevin