Saint Laurent Wyatt alternatives?
CP's might be a good mid-point but are boxier.
Try Story et Fall, it's the brand most people go to when looking for a cheaper SLP boot. They are higher quality too, probably, at least in terms of construction (I think most SLP boots are blake stitched with a fake welt whereas SeF has goodyear welted models, not sure about the chelseas, though).
John Lobb might disagree with you.