Hi I want to make a mould of my bonnet which is 145cm x 115cm which size unimold kit would I need regular or the larger one

The small Uni-Mould kit is for 0.7 Sq Metres. As your bonnet is 1.6 Sq Metres You will need 3 of these. For £30 more, the larger kit will give you twice as much as you need. If you are following the Easy Composites video and making the inner skin as well this should be ideal.
(Yes, Moulds are expensive!)

Brian.

Thanks for the reply, I knew the mould would be expensive but at least it's useable over and over again

Also, Does the price count when you are having fun?   What is the value of looking at something and saying "I made that!"

Brian.

Yea true think that's the bit in most looking forward to just being able to say I made it (if it comes out good lol)