I think you are going to be disappointed about A. the price hitting that lower trend support line in the mid 4500s and B. If it does hit that support line it might be a long time after you are predicting - therefore hitting it at a higher price.
Yes, $4,500 to mid $4,500's is too low in my opinion as well. My FIB was updated to what you see in the chart you quoted. I had a different chart with a different number when our ATH was $7,590 before it jumped up to new ATH of $7,888. That's when I made the update for the FIB RT 0.618 change due to a new ATH change. It should still say, $4,854 is the 0.618 FIB RT according to a pattern I pointed out in prior posts.
Also mentioned within (+/-) 2.3% of that $4,854 number..
1% = $48.54
2% = $97.08
2.3% = $111.64
So, anywhere from $4,742.36 to $4,965.64 for the 0.618 FIB RT.
Thanks for sharing! Will be interesting to see how it plays out.

Keep in mind, the above price points came from a "pattern" I noticed. That's the main reason for sharing the FIB RT.