Doing my first 3D print.

[curious aardvark]

lmao - nobody else would leap from 300mm height to a volume measurement.

Other than that - fred's spot on :-)

Have you looked at other print services.

And sls would make more sense. No supports, much larger build volumes and readily available.
try: https://www.shapeways.com/

It will be expensive, no matter what method you go for.

[Joeallerton]

Yeh the price will probably be a large determining factor in the material I choose however it is also one of the only things I have no idea of as most descriptions and sites describe pricing as very or not expensive and with no frame of reference it's pretty difficult so in your opinion how expensive roughly would a 10"3 print be in grey resin.
If this is somehting you can only gage with the volume of the actual model then sorry looks like i'll just have to finish the model and get an estimate.