Tamiya 1/72 Vosper "Perkasa"

Thanks to all you replied with information about Tamiya's 1/72 Vosper. I got enough good intel to make the decision to buy the kit online. While waiting for my ship (er...boat) to come in, I've been wondering if it would be possible to build a Royal Navy version from the kit? It's hard to tell from photos on the internet, but R.N. versions of the Brave-class P1011 HMS Brave Borderer and/or P1012 HMS Brave Swordsman look quite similar to Tamiya's "Perkasa" model. Can anyone enlighten me as to whether there are significant cosmetic differences that would make it impractical to make a Royal Navy version from the Tamiya kit? Thank you to all.