By all means check and see if you have a local driveline shop and ask for some advice. I worked part time for 5 years at Carolina Driveline and saw many wonders as Tom has been doing it for 30 plus years.
My personal opinion with your set up is yes you can run a one piece driveshaft and be fine.....but for info, what rear end are you running?

...and a good driveline shop can make shafts of several different materials/strength.

(you can google Carolina Driveline and call and speak with Tom or Steven. They ship shafts every day to all parts)
(measure twice, cut once)...and be sure to measure it correctly according to the shop your dealing with. Not all measure the same way!


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