greengage question?

I have a 1m tall greengage, ona St Julian A rootstock. It has been pruned at the nursery to make one leader, and I think it is two years old from looking at the pruning.

I might find it difficult to fit this is as a half standard/ pyramid which was my original thought.

Has anyone every grown one (or a plum) as an espalier?

I have looked at sites on line and it seems you could do this, but I wonderd if anyone actually has experience they could share please/