Hi Bob,
First of all, welcome to the best and friendliest forum on the web - you'll find plenty of help, encouragement and support here
At the risk of sounding like a heathen, with a lap steel you should be able to just re-string the guitar the other way around without a lot of difficulty, similar to Jimi Hendrix's Strat, especially if you can get one without volume and tone knobs in the way. Might be easier and cheaper than sourcing a leftie? Apologies if you've already considered and discounted this option though.
Cheers, Sid