Converting from Double Wall to Single Wall top

[68ls1]

I have a 1971 Blazer currently in build process. It has a double wall top which is in pretty rough shape, but I believe is repairable with a lot of work.

I am considering swapping to a single wall top using the reproduction from Motor City K5. Currently priced at $8,500 + extras

To achieve this I understand I need to create new holes, these I believe are oblong in shape, and weld cage nuts to underside of bed rail.

Also small items, like wiring for dome lights and new side glass as is different from double wall. My hatch has been repaired and I can reuse.

The tricky bit is that we are due to paint in next couple of weeks, so any welding would need to happen prior.

Being in Australia, getting an actual top here will take months, and I don’t want to hold off painting for that long.

I can air freight the cage nuts, but I would need a template to know where to place in preparation, while I sea freight top.

I never planned to use a top much if at all, but I do want a complete truck at end of build.

Or am I over thinking and should just stick with double wall? Option would be to get reproduction from Premier Hot Rods at around $11,000 + extras. Does anyone have feedback on this top?