Grid-aligned payload track models?

[The Tiny Desk Engineer]

I've always wanted to try making a Payload map, but every time I try, I get stopped by the fact that none of the curved track segments seem to easily line up to the grid, even at the smallest scale allowed by Hammer. I really don't like moving props off-grid in Hammer, are there any custom curved track models for TF2 which line up to a grid easily?

 

[nesman]

I've never had this issue before with payload tracks. Are you worried about a 1hu gap between tracks or something?