yea I just bought the OS .18TZ with Slide Carb and I cant really find any pullstarts that would fit it... please help a guy out... even if theres a roto start that would fit it ?

What do you have it in?

I will be having it in a NTC3... in about a week when it comes.

Your best bet is a starter box. No roto start will fit and pull start will be in the way of the exhaust.

To add a recoil starter to your O.S. Max .18 TZ engine, you'll need to change the crankshaft, and then add the starter shaft, rear cover, and recoil unit. Here are the stock numbers and list prices of the parts you asked about:

OSMG4448 21912040 CRANKSHAFT .18TZ-TX $49.99
OSMG8972 21922000 STARTING SHAFT .18TM $12.99
OSMG8985 21901800 REAR ADAPTER .18TZ-TX $14.99
OSMG8986 73008000 RECOIL START ASSY N1 $39.99

These parts can be ordered through any hobby retailer who sells O.S. Max engines and accessories.