Mmm Zd ah, well if that was a tent grow i would not take a second thought about the matter...
Out doors tho i may think twice, it is not like space is a question really & some days nature just catch's up in growing & no harm in letting her go a little longer to see what happens.
Ye ok Major bigger plant protection cage ah, not a problem just need to expand some research ideas
Google or what ever ya use !
Gonna come with a list of search stuff ya need to type in & work on on that...
1. Fruit cages - come in different size's pretty standard height tho width, depth varies, more likely a standard butterfly mesh size.
2. Seen DIY build ya own grow tent poles / fittings etc from some sites, gonna need to look around for those supplies.
3. Butterfly mesh comes in different gauges, ya know size of hole etc... need to check out hortic or agric sites for larger rolls / grades of mesh as home depo etc may not stock all.
5mm should be ok for most critters..
That should get ya on the right road bud
DIY option ya can build ya own frame perhaps fencing material like meta sockets with 4 by 4 inch poles etc well at least how i know the terms in my neck of woods ah ! get a suitable mesh size & secure any over lap well.