I have (well not yet) a remmy LVSF in .17 (it seems to be the only apart from CZ rifle in that calibre). I must admit, it has everything I really want being synthetic and stainless, but I don't like blind box magazines.
Can these be converted to a removeable magazine vesion?

DW, Having not really looked real hard at the new LVSF guns I am not real sure. I have had several ADL type guns converted to BDL, using standard BDL mag box and bottom metal and also the H-S bottom metal.
I don't see a problem, other than time and a bit of fitting the bottom metal.

Sure, it can be done. Sometimes the front screw eustachion is a little larger than the front tab on the bottom metal, so you might see a little bit of a gap, or bedding material, around it.

You will also need either a new mag box, or to modify yours.