Cabinet builder

[Coleus]

hi guys

I am looking for some advises or pointers from someone who may have got this done before. I plan to build a new tank on my main floor between two beams, it is similar to this



Now, i am wondering if i should have steel stand and then find someone to skirt it or build the whole cabinet? Which way is easier and if anyone has a good recommend cabinet builder that can do this for a reasonable price?

Thanks