The ones I have done have required splicing boxes in the basements. The basements are actually at ground level. These were townhouses with 1 car garages. There's 6 sections (3 sections per floor), 2 floors, with tails down to the basement that either went as homeruns or to complete 3-way switching between any of the six sections. Basements had 1 bath, garage, hallway, laundry area, utility room and one large liveable room.
They're near impossible to do without owning a toner. That would be the advice I would give, have a toner and if u don't have one, get one.
Good luck.
P.S.
