I've never seen a published limit for the maximum spacer stack on an aluminum or steel steerer but 65 mm does seem like a lot. I have 40 mm of spacers on a 1" Cr-Mo steerer on one of my bikes and it looks (to me at least) awkwardly tall. I don't think I'd want 25 mm more spacers.

Can you use a higher angle stem to allow a shorter spacer stack?