I understand the following dizzies can be modified to work in A-series engines:
Make Model Year Engine
ISUZU PICKUP 86-87 2.0L
ISUZU PICKUP 83-85 2.0L
ISUZU TROOPER 84-86 2.0L Thru 1/86
ISUZU I MARK 1985 1.8L
ISUZU I MARK 83-84 1.8L
I haven't been able to locate one at a reasonable price (<$50), yet.
If anyone has access to one or more I would gladly appreciate a lead
on one. If anyone wants to buy two and send them to me, I will do the
modifications and send one back, and pay for one unit for myself
(again <$50). I would need a Spridget dizzy drive gear, too. If I
find one I will do the mods and report on the process.