Dunbar; -the short answer is 'no'.
The model you have, which I would think has an aluminium alloy reel seat, is one of the later models, which aren't a patch on the others, the ones with ribbed, darkened-brass reel seats, so don't pay too big a price...
Duplicated check was fitted almost as standard, but the design is different in the later models.
The reason that they cannot be converted, is that the thread which holds all three parts of the reel together, is either left-or right hand, according to model. This is so that, when the reel is under load, the thread tightens up.
...You need not be told, what would happen should the reel be fitted to the rod on the 'wrong' side...
I have seen a photo of a repair job done to a damaged 'Perfect', where a handle was fitted direct to the spool, thus converting it, but I would not recommend you do it to an un-damaged one.
Incidently; not all 'Perfects' were made, or fitted with line guards as standard, and they were certainly not all made from agate. Many models throughout its' history, were either non-fitted, or had the guard liner made from hardened stainless-not nickel-silver, as is often mis-quoted. It was the guard mount, like the tension adjuster, which was nickel plated.
Also, be careful if you want to replace, or fit a guard where one does not currently exist. The drum width on the later model was wider than the earlier ones of the same diameter, so guards are not interchangeable. The reel would also have to be set in a specialist fixture, in order to counterbore out the recess for the guard ring..
This picture illustrates the difference between old and new, left and right respectively. The middle reel is a pre-war 'Perfect' copy by Heaton.
Chough