Converting any traditional (non Omega), manual-safety equipped, CZ to SAO is very easy. The only thing you "need" to do is add a SAO trigger. The trigger has pre and over travel adjustment and would probably be comparable to your Sig SAO after adjusting.
https://cajungunworks.com/product/st...minum-trigger/
If you go that route I would also highly recommend the Short Reset Kit from either Cajun Gun Works or CZ Custom. This will allow you to get a really short reset and includes the improved firing pin retaining pin which is a necessary upgrade for any CZ. If you want to go all the way you could get a competition hammer from CGW which will give a nice crisp break and lighter trigger pull as opposed to the slightly rolling break of the stock trigger.
SP-01 $650
SAO Trigger $50
Short Reset Kit $75
For under $800 you will have an excellent pistol with a trigger reasonably close to a 1911.