You can get 2021 bits and/or kits from Dave Ellis at Nucast Partners, I recently started building a saddle tank and lost a couple of the splashers, a phone call to him resulted in the recalcitrant parts, plus an unexpected bonus an Armstrong Standard Goods with a Dean tender. I don't have the contact number to hand, but if you pm on Tuesday morning, to remind me to find it. It's currently too cold to go over the workshop as a special trip.