[mothered]

Would you simply tape over the existing tape

Correct.

If done right, It would be very difficult (If not Impossible) to spot any signs of Inconsistencies.

As for the replacement tape, that eBay link is no longer available and Amazon around here uses the Prime-branded tape... Any other ideas on how to get the correct type of tape?

That was the first one I came across.

As an SE'er yourself, It's your job to research.

At the end of the day though, is it really necessary/worth the trouble to have the Amazon-box resealed?

I can't speak for every SE'er.

Personally, If the Item Is valued at 5k, then your question Is answered.

I get that the package ideally will look untouched, but wouldn't it be more realistic for a customer to check the contents before returning the item?

As an example, return It on the grounds you've received the same one as a gift, or simply a change of mind.

I can think of dozens of other reasons. SEing Is all about being creative, questioning assumptions, working around the obvious, seeing what's not there and thinking outside the box. Use such attributes to your advantage.

I mean, would it not raise MORE suspicion for someone to return an unopened seemingly untampered package?

How so?

The reasons above well and truly justify the return. Over a span of 30+ years, I've used the sealed box method both In-store and online, on hundreds of occasions - all without fail.