Great tools, I have 2 sets of them. For those near a Harbor Freight store, they are usually $5! I think you can also order them on-line, good for all kinds of interior and trim work over the years.
PS: I wonder if the BR spec car doesn't have certain things pre-wired, I don't believe here in the US anyone had to go to this extent, in fact dealers have been charging about 2-3 hrs for the install altogether. Anyhow, glad your hard work paid off!
2011 BMW E82 1///M: AW, all options; Renntech, Akrapovic, Forge, P3, RevoZ CF bits, many mods
1988 BMW E30 M3: Lachssilber on Silver, Dinan S14, 17' BBS rims, stock
2016 Porsche 981 GT4: Sapphire Blue, Factory bits, Xpel, stock
1998 Porsche 993 C4S: Zenith Blue, last aircooled widebody, Bilstein PSS10, Fister exhaust, mostly stock
2008 Audi B7 RS 4: Sprint Blue, Audi Exclusive Euro Bucket Interior, Premium+Titanium, many mods