Are these fair prices for health insurance and what should I do?

I was told from my last question to just call and ask for quotes for health insurance. So I did…There is a bit of details but I could really use some help from people have experience with this.

I plan to call Blue Cross and Blue Shield I have been suggested to them. Any other ones I should try?
The 2 that are available at my income that I could pay monthly he told me.

United One
$146 monthly
$35 copay
$2,500 deductible

Edena
$105 monthly
$30 copay
$2,500 deductible
cheaper BUT they have this thing called 80/20 which he explained to me was basically instead of 2,500 I would end paying more but he did not go into details much of what it meant exactly so I’m thinking there is some catch or something..?

Also I have another problem you see I had a knee injury back in February I was going to the doctor for it. In fact I have the CT scan CD from the last visit but Medicaid ended my coverage at the end of February. Well I thought it was nothing serious but my knee is still giving me problems nothing major but still I don’t have the same mobility and flexibility…And plus its stopping me from my one main goal.(I think it was because I turned 19 that year but not sure why they ended it exactly.)

Is there a chance that they will say it is a pre-existing condition I asked the representative on the phone he sound the worse that is likely to happen would be higher premiums but he could not say 100% he said.

And one last question I was told I could go to my county’s health department and likely get treated that way. Would that be a good option?Or better off getting health insurance?

Ultimately I need find out if this is serious or not you know, like do I need surgery or just time and physical therapy at least.

Oh and my job has nothing benefit wise :\ .....