Validation List values from 3 columns based on INDEX MATCH of value offset from cell

I'm having some trouble creating a Data Validation List formula that works.

I have the following Price list table: [TABLE="border: 0, cellpadding: 0, cellspacing: 0"]

[TD="width: 64"]Item[/TD]
[TD="width: 64"]LIST[/TD]
[TD="width: 64"]P1[/TD]
[TD="width: 64"]P2[/TD]
[TD="width: 64"]P3[/TD]

Item1

$5.00

$4.00

$7.00

$2.00

Item2

$6.00

$5.00

$3.00

$5.00

Item3

$4.00

$3.00

$5.00

$7.00

Item4

$5.00

$5.00

$2.00

$3.00

[/TABLE]
On my Main sheet I have a table as follows: [TABLE="border: 0, cellpadding: 0, cellspacing: 0"]

[TD="width: 64"]Item[/TD]
[TD="width: 64"]LIST[/TD]
[TD="width: 98"]Price[/TD]

Item1

$5.00

DROPDOWN

Item3

$4.00

DROPDOWN

[/TABLE]
What I'm trying to do is on the main sheet, based on the selection on the item column, I need the 3 prices (P1, P2, P3) to be in a dropdown in the "Price" column.

to get the list column i am using.

INDEX(price_list
[LIST],MATCH(B14,price_list[PN],0))

I thought maybe by using INDIRECT I could do that 3 times separated by comma's in the DV formula but that doesn't work. I would also have to go to each cell and increment the cell reference (B14). I would like to use OFFSET in the datavalidation formula but I cannot get anything to work. Is this possible?

EDIT:

If I use this in a cell:

=INDEX(price_list[P1]&CHAR(44)&price_list[P2]&CHAR(44)&price_list[P3],MATCH(A2,price_list[PN],0))

I get the expected 3 values separated by a comma. I used CHAR(44) instead of "," because I thought it was conflicting the double quotes in the INDIRECT("..."). However, this does not work in the Data Validation formula:

=INDIRECT("INDEX(price_list[P1]&CHAR(44)&price_list[P2]&CHAR(44)&price_list[P3],MATCH(A2,price_list[PN],0))")

It accepts this, but says resolves to an error and no items in dropdown:

=INDEX(INDIRECT("price_list[P1]")&CHAR(44)&INDIRECT("price_list[P2]")&CHAR(44)&INDIRECT("price_list[P3]"),MATCH(A2,INDIRECT("price_list[PN]"),0))

I feel like this should work... Once I get that figured, I want to replace the "A2" reference with a offset but i'm not sure if that is possible yet.

Yes! That is perfect!

...once you see it lol.

Thanks so much, saved my day,.