Last time I bought parts, a few years ago, there were still plenty of vendors selling seals etc, this time round there are very few, and my local parts suppliers have next to nothing and are informed that as Brasilia is bankrupt/gone there will be no parts anymore (since they folded in 2012 I guess the locals are finally up to speed). Since supplies were still good in 2015 I erroneously thought aftermarket support was in place, seems it was just supplies while they lasted. I have a brilliant 2group Brasilia Lever, it is hard to fathom that maintaining this 30 year old machine will prove to be harder than maintaining even older machines. I found silicone piston v seals from an eBay seller in Hong Kong that may be good (I'll wait for a review as mine are still going strong) but a recent search for a shower screen was pretty frustrating. Kind of a bummer, one of the reasons I like lever machines is ease of service and simplicity, after the great espresso of course.
I'm posting this here as the repairs forum seems to diverse for this question.
I am also interested in how much interchangeability there is between the Astoria spring Lever and the Brasilia?