outside portable enclosure help needed

[sharky]

Gardening season is coming up and my back yard is cat proofed but not the front...

I am looking for a portable( carriable or wheels??) enclosure that can handle either one or two kitties... As I hope to have Frankie by gardening season( crosses fingers) ... Zoey has never seen the front yard without a leash and has claws ... frankie I have been told is a front declaw...

any and all ideas welcome

I looked at the 10 foot kittywalk in the dr fosters catelog , any opinions??