If i want t go with 617 format i have many options, but the 2 options i was thinking about are:

1) Buying a 6x17 roll film back to use it on my 4x5LF body

2) Buy a 6x17 body

So between the two, which one do you prefer to go with?

Will 6x17 back cover that 4x5 format enough?

Can i use my analog LF lenses [modern ones] if i buy one of those 6x17 cameras body only with its viewfinder and cone to accept that lens?

I am not planning to go with 5x7 or larger then buying different backs yet as another option, so i limit myself on the 2 options above, any recommendations or opinions/suggestions are welcome.