I've used .060" Electrical cable 'Zip Ties' (aka Ty-Raps) to check cam lobe-to- connecting rod clearances and rod to pan rail/bore bottom gaps on stroker motors for years! They're just the right width to get in where a traditional feeler gauge won't go, and in the case of cam lobes I'd just cinch them up tight on the lobes themselves.

Looks fantastic buddy!