Getting an Objects Rotation and using it in CFrame?

Making a weld script and I ran into the issue of rotating the pieces properly to go on the model

--Declare Table
local parts = {} 

--Grab Parts
local handle = script.Parent.Handle
local children = script.Parent:GetChildren()
for idx,child in ipairs(children) do
    if(child.ClassName == "Part")then
        table.insert(parts,child)
    end
end
--Store Current Part Positions
local partsLocations = {}
for key,value in pairs(parts) do
    local pos = value.Position
    table.insert(partsLocations,key, pos)
end


--Store Current Part Rotations
local partsRotates = {}
for key,value in pairs(parts) do
    local rotate = value.CFrame - value.Position
    table.insert(partsRotates,key,rotate)
    print(tostring(rotate) .. " - " .. tostring(value))
end


--Subtract Positions from Handle Postion to Make them relative for use in CFrame
local cFrameLocations = {}
local handlePos = Vector3.new(0,0,0)
for key,value in pairs(partsLocations)do
    for idx,part in pairs(parts) do
        if(idx == key and tostring(parts[key]) == "Handle") then
            handlePos = Vector3.new(value.x + handlePos.x,value.y + handlePos.y,value.z + handlePos.z)
        end
    end
    if(parts[key] ~= "Handle") then
        local finalPos = Vector3.new(value.x - handlePos.x,value.y - handlePos.y,value.z - handlePos.z)
        table.insert(cFrameLocations,key,finalPos)
    end
end


-- Make Welds and Map Each Part To The New Location/Rotation
if parts ~= nil then
    for key,value in pairs(parts) do
        if(tostring(value) ~= "Handle") then
            key = Instance.new("ManualWeld",handle)
            key.Part0 = handle
            key.Part1 = value
            value.Anchored = false
            for posKey,posValue in pairs(cFrameLocations) do
                if(parts[posKey] ~= "Handle") then
                    if(parts[posKey] == value)then
                        for rotKey,rotValue in pairs(partsRotates) do
                            if(parts[rotKey] == value) then

                                key.C1 = CFrame.new(0 - posValue.x,0 - posValue.y,0 - posValue.z,rotValue.R01,rotValue.R02,rotValue.R10,rotValue.R11,rotValue.R12,rotValue.R20,rotValue.R21,rotValue.R22)
                            end
                        end
                    end
                end 
            end
            elseif(tostring(value) == "Handle") then
            value.Anchored = false
        end
    end
else 
    print("failure")
end

This is the entire script; I attempted to store just the rotational matrix of the CFrame, and call out the difference pieces of it as they were need

But you either cant; or I dont know how to; call on said inidividual pieces My attempt is on Line 59(The site didnt like how long the line was; so it cut some of it off; it wasnt conceptually relevant regardless)

Can someone help me out?