Yeh i think the toshibas would work well. i'm too tired right now to go looking up switching times but i did drive them quite hard in a charger design quite recently and they worked well. 700v dc bus and 100amps
DO put a good snubber between B- and M- and poly caps in parallel with the elecs. To my surprise my caps ( 4 big 400v comp grade elecs) are showing no sign of distress. Another ebay guy in new york sells caps at good prices.
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Now, Cole, when you shift the gear and that little needle on the ammeter goes into the red and reads 2000 Amps, that's bad.
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