Nice work partner.

I had the luxury of buying mine, already done.
I cannot really explain it, the trunk (and all IS bodywork) is lightweight, and more of a sail than a weight problem, even loaded. But I like riding my supervalk
much more than my trunked interstate. They are both '99 black interstates, both with identical length shocks, PS fork springs, same tires, and pretty much the same doodadery.
The supervalk at 98K, the trunk baby back at 57K.
And with the solo rack (supplemented with a 5/8 dowel ziptied across to keep a big duffel from rubbing my rack-less saddlebag paint, and give me easy access to bags while traveling), I can carry about the same amount of stuff as with the trunk bike. (And if I load a big bag on my back seat of my trunk bike, I cannot open my trunk at all while traveling)