Okay, using my preschool level TA based on the price action of the last few years I'd look for the GSR to move under say 84 (or 78 using the price action over the past couple of decades*), then wait for it to move back over that level and look for indicators that confirm a break out indicating that gold will appreciate at a faster rate than silver.
* this takes into account both of the post GFC and COVID market crashes which were anomalies so I'm not sure it's as accurate.
As far as RE goes, well prices in that market are of course insane so the longer you wait, the more $$ you're going to need to find for a deposit. What taxes are you referring to with RE?