Address Rafter-to-Siding Transition

the transition from the rafter to our siding here the plans show that there's supposed to be a gap so the pl show that these are cut uh up to here then there is a 2x8 subfascia that goes here and then siding goes over that as the roof rafter uh metal roof goes over here's the problem though the architect design a 2x8 subface that goes there in fact two of them stacked to make this distance they don't make a 2x8 subf shim they don't um uh so we have to consider the material that's out there so what we kind of came up with and I spoke to the sighing guys is we're going to trim this to this size here we're going to put two boards that are 2x8s stacked together to make this distance this is not a 2x8 this is a 1x6 and then that'll create this nub down below here the siding will go over it and then we're going to cover this with a piece of siding sofit trim essentially this is the sucky part I have instructions but they're based off of products just don't exist for this application and that's the most