Rebar drawing - take parts from 2 files & produce drawing

Hi,

I am looking for someone to assist in the production of a reinforcement drawing of a 4.3m diameter (approx) circular concrete base with a perimter rebate approx 250mm in & a concrete chamber circa 3m long 1m high & 1m deep that will terminate at the same height and adjoined along one side to the circular base.

I have 3 exising drawings of similar deisgn but different size bases that I would like to take certain details from ( ie rebate detail, same size & shape cut & bent)

I will require a plan view to be produced and a section.

Plan view:
I will provide a simple 2d line dwg of the new base size and I will require you to bring in 2 matts of rebar top & bottom at 200mm centres and adjust the straight bar lengths. Then use an edge detail from another drawing and show the perimeter links and L bars at appropriate centres
whereby I would like to take some details from 2 existing drawings, modify the main structure size & some straight but keep the same rebar

Section view
I will provide a simple 2d line dwg of the new base in section and I require you to show the rebar as appropriate.

I have aput together a bar bending schedule of all the elements required & will require you to show bar layouts and bar references for construction.

The output needs to be a single A1 sheet with plan and section & I will put a 3d view of the base & a topo position & title block onto it.

If you have software that allows you to model this in 3d please let me know as it would be useful to have colour coded 3d views of the rebar if possible! Increased fee negotiable.