Super cool named ranges with offset.

I have named ranges : bd, pl, wh.

Can anyone make a function that calls up multiple cells from those ranges like so:

=FUNCTIONNAME(bd3,pl1,wh5)
That would return the same thing as =INDEX(bd,3)&INDEX(pl,1)&INDEX(wh,5)
(i can guarantee that the ranges would never have numbers in their names)

if you need another separator you could use space or "." or "-" or ";" (space would be awesome)

=FUNCTIONNAME(bd 3,pl 1,wh 5)
=FUNCTIONNAME(bd.3,pl.1,wh.5)
=FUNCTIONNAME(bd-3,pl-1,wh-5)
=FUNCTIONNAME(bd;3,pl;1,wh;5)

THREAD IS SOLVED with two cool solutions:
Anyone who uses named ranges could benefit from these.

EXAMPLE IN ATTACHMENT: