Just a suggestion.....
if u r getting this body work done, why not do these things for a change:
1) make space for seat belts for rear passengers.
2) make space for retractable seat belts if this model comes with manually adjustable seat belts
3) A little difficult but if ur dentar can do a good roof work, why not buy a sunroof and install it:
You can use the type of manual popup sunroof that comes in some models of charades and some other cars as per the pic and it can be sourced from shershah easily and will not be much expensive
.
this link also helps as guidance for installation.
https://www.howacarworks.com/modifications/fitting-a-sunroof