Need Botton Roller Assembly and Top Nylon Guide

A home owner from Charlotte NC says:
The wheels are 1.5 inches and concave as seen in photo.

Hole spacing seems to be about 2 1\2 inches.

Came with house built in 1990. No brand name or number othe than
"A.C.E Inc" stamped on wheel housing.

Note exact arrangement of holes and how it mounts for nylon top guide

Can you help please?
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Paul from SWISCO responded:

Hello there and thank you for writing in. Starting with your guide, see if our 23-226 is a good match. As for the roller, it looks like it may be concave. If so, our 23-098 may work for you. Look over its measurements to see if this will make for a good substitute. 

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