Thank you so much for your reply, I've been in the dark to weather i'm doing this right and you've been a massive reassurance so thank you!
So I thought splitting the model would be enevitable because my final model will be somewhere around 300mm3 and the sla printing services I've looked at generally have a limit of 230mm3 however if you know a trustworthy sla resin printing service that does larger prints that would be incredibly valueable info.
Thanks for the heads up on the post process, I didn't even consider it being apart of the service but now i'll definetly keep it in mind when choosing a service.
And when ilisted my choice as grey resin that was simply one of the types of resin available on i . materialise the website (im not allowed to post links yet) as it was listed as being good for figures however if you know a more suitable resin type that would be very appreciated.

Thank you for your reply it was a massive help!