Hello and welcome to toymods
Sounds like a great project you have there. The Chev is probably an easier option for the old crown chassis as it will be a bit narrower than any of Toyotas offerings. You will still need to be careful about your exhaust manifolds and front suspension mounts.
As for photos, normally people put photos on a site like imageshack and then call up the pic in the thread. If you need some guidance, we can point you in the right direction. There is some storage for photos in Toymods but that depends on your membership type and I am not really sure what the details of that are.
Good luck with the conversion and do some keyword searchs (top right corner of the page). And if that fails, ask some questions in the tech and conversions section of the forum.
Anthony
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