Firstly, your aggregate is pretty low. I don't really know much about medical colleges in Lahore but in Islamabad you'd be hard-pressed to get admission in any Private Medical College with that aggregate, in MBBS or BDS.
I do hope you get in somewhere though.
Secondly, what is 'self finance scheme of HEC'. I've seen it referenced to a lot on these forums but I can't find an decent explanation of what it is anywhere.
HEC is the department through which foreign applicants apply to govt schools. They look at your equivalence and SATII scores and place you in a college depending on your choice and the availability of a seat. Private colleges run on their own individual apps and are therefore totally separate from govt school admissions
Higher Education Commission.
They offer seats for MBBS in Pakistan based on open merit- but they are Self finance seats. That means the candidates selected on open merit will have to pay dues. But these dues are less than what you would pay for private medical college.
Only those students can apply to HEC who hold a foreign passport.
Depends on what college you get selected in.
The HEC dues for the government medical colleges in LAHORE are almost 6 lacs ($10,000) which is same as most of the private medical colleges here in Lahore.
But the HEC dues for other government colleges are not that high.
you can check out this link below.