Proto 2000 Y3 question

[nw-modeling-list at nwhs.org]

"(three[Rivarossi] Y6bs and two that were kitbashed,
one to a Y6, the other to a Y4)"

Bob, would you consider posting to the list what you
did to a Riv Y6b to retro to a Y4??  Bet a few people
would be interested.  Thanks.

Frank Bongiovanni