I did a BTS last year since I couldn't get on John Wood's calendar in a reasonable time frame. All said and done I think it ran closer to 8k with shipping (a big ouch in my case) and a couple of non-trivial while-you're-at-its.
John Wood also had some more budget builds that would have been cheaper as well.
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'99 EB ex ENG KSWB news van, low rent 4x4 conversion (mostly fixed by now), home built interior.