Reiga is a 'spirit leaping place', and we should look for these places in time, not in space. Manu rere is the rongorongo sign for a spirit leaving, and we can count to 8 such 'birds:

Aa3-17	Aa3-18	Aa3-19	Aa3-20
Aa3-21	Aa3-22	Aa3-23	Aa3-24	Aa3-25 (200)

Aa3-26	Aa3-27	Aa3-28
Aa3-29	Aa3-30	Aa3-31	Aa3-32
Aa3-33	Aa3-34	Aa3-35 (210)

Also the G text has several Rei glyphs beyond the sign of turnover in Ga7-30 (where 7 * 30 = 210 = 420 / 2):

Ga7-30 (200)	Ga7-31	Ga7-32	Ga7-33	Ga7-34
Ga8-1	Ga8-2	Ga8-3
Ga8-4	Ga8-5	Ga8-6 (210)
Ga8-7	Ga8-8	Ga8-9	Ga8-10	Ga8-11 (215)

Ga8-12	Ga8-13	Ga8-14	Ga8-15