Don't bother with a Scupper.

You'll feel fine from the first moment on and that's what is wrong.
You don't get on the bike first time and start blasting away.

Kayaks are the same.

Go to www.oceanpaddlesports.com/ in your area and test a ski.

Don't get discouraged falling off - it is like a bike, remember.
Some skis have adjustable foot wells and accommodate any hight.

Once get a feel for it you will not set a foot in a kayak again.

The similarity between Scupper and a surf ski is the same as between
tricycle and racing bike - you sit on them spinning pedals and that's about it.