With that in mind, does anyone have experience with Taylor Wimpey or know of any other builders we could check out in the Midlands area? Barratt Homes are another we've come across but been told to avoid them.
Barratts are not bad, it all depends on the site. Their more expensive range (David Wilson) are required to have a higher standard.
Taylor Wimpey are similar.
Persimmon, Redrow, Charles Church are other national developers and you may have more local developers.
In my time working in the industry, I found Barratts to be more accommodating overall than Taylor Wimpey (who caused me to bury my face in my hands constantly).
I'd be surprised if you couldn't tell them what you want and see if its possible, no matter what plot you were interested in.