ET III wheels has a 5 spoke wheel 16 x 9.5 and does drill them 5 x 4.5 bc around $400 each new and their "Fueler" style is a Halibrand look-a-like and is available 16 x 10 , drilled and around $350 ea. They offer your choice of back space as they a machined to order. Company been around since the 60's
Built in 1995 ,Ran 6.90 in exhib, slowed it down for NE1, tuned it back up for when 7.0 became a class. Won the very first 7.0Pro race held