Ghost gearbox clunking at low speeds and I'm praying it's just a software glitch not a ZF rebuild-Forum-Culture Informatique

I know this is a long shot because how many people in Sharjah are actually daily driving a Rolls Royce but my uncle left his 2014 Ghost with me while he’s in London for the summer and of course the one time I take it out to impress a client for a dinner meeting on Al Majaz Waterfront the transmission decides to start acting up with this really unsettling clunk when downshifting from third to second as I slow down for a speed hump and then again when I’m crawling along the Corniche looking for parking and the whole car judders slightly like it’s not sure if it wants to be in first or neutral. The car only has about 70k kilometers on it and my uncle is absolutely meticulous with the service history at the dealer in Dubai but I’m not about to drive all the way to Sheikh Zayed Road with a gearbox that might leave me stranded halfway and I also don’t want to be the guy who returns his uncle’s pristine Rolls with a five figure repair bill because I ignored a warning sign. I’ve been reading up on the ZF 8 speed issues and apparently the mechatronic sleeve and the bridge seal are common failure points that can cause exactly this kind of low speed clunking and hesitation and if you catch it early it’s not a full rebuild just a fluid service and a reseal but if you let it go the valve body chews itself up and then you’re looking at a number that makes my eyes water just thinking about it. I was searching for any independent shops north of the city that have experience with these ZF units in high end applications and I stumbled on https://gearboxrepairsharjah.a…..lls-royce/ while I was doom scrolling at 1am but I’ve never actually used a specialist in Sharjah for anything this complex and I’m genuinely torn between just parking the car until my uncle gets back or taking a chance on a local place that claims they can handle it. Anyone on this side of the bridge ever had to deal with a finicky transmission in a Ghost or a Wraith and actually found a shop that didn’t make things worse or should I just bite the bullet and call a flatbed to take it to the dealer and accept whatever astronomical quote they give me for peace of mind.