2nd year here. As for buying an otoscope/ophthalmoscope, you will need it a lot 2nd year. Arguably, you could probably get away with not having one first year by borrowing a classmate’s who is not in your lab group but you will definitely need one for Score 1 physicals during 2nd year. During fall, it felt like we did Score 1 every other week. You don’t need to buy the super nice expensive ophthalmoscope but the standard one should be ok. Some guys I know who bought a cheap one off Amazon were asking to borrow a classmate’s Welch Allyn or Heine otoscope because theirs didn’t work as well. Others are fine with buying the cheaper one on Amazon. If you’re looking to save, I’d also check eBay. You will be able to sell your Med kit if you want to recoup some/most of your money so please at least look into a proper otoscope/ophthalmoscope- yes, you do need both (usually comes as a set).
As for the different sized BP cuffs, you will need them once or twice during Score 1 if you are doing BP. Sometimes, they have extras but you need the diff sizes for the kiddos.
Reflex hammer is handy but you can use your cellphone if you’re in a pinch. There’s usually a reflex hammer in the SP exam rooms but they’re nice to have during Score 1 physicals for sanitary reasons.
Stethoscope is a must have!
You can use whatever bag you want to put your gear in.
Hope this helps. Enjoy your time before Med school becomes your life!