MAX For INDEX-MATCH Using Only Certain Columns, Without 'Helper' Cells/Table

[DerekK]

	A	B	C	D	E	F	G	H	I
1	Reference Number	Numeral1	Something	Else	Numeral2	Other	Baloney	Numeral3	Whatever
2	C101	5	&c.	&c.	5	&c.	&c.	6	&c.
3	C102	8	&c.	&c.	7	&c.	&c.	9	&c.
4	C103	13	&c.	&c.	13	&c.	&c.	16	&c.

How would I return the "9", which is the MAX out of columns B, E and H only for reference number C102?

Thus far, I have come up with an array which extracts the required columns (because there are other numbers in contiguous columns which shouldn't be considered) but I'm not sure how to go about the rest:
{=CHOOSECOLS(Sheet1!$A$1:$I$4,1,2,5,8)}

Hope you can help!

 

[ExcelToDAX]

How about:

=MAX(IFERROR(VALUE(XLOOKUP("C102",A2:A4,B2:I4)),0))