ex army folding spade can be used for digging,hoeing and general chopping/thrashing(nettles) and folding saw for pruning tree branches both fit in a decent sized pack would add a swiss army type knife for general small cutting jobs and some para cord for tying things together,all of the above can be brought super cheap from your local army surplus store or ebay.
wouldn’t hide anything as if found will either get nicked or give the game away to what your up to,pack it in pack it out and tidy up after your self and don’t go in mob hand too many of you and the land owner will find out like I said ninja style works best good luck :wink:
p.s should add look at IMBA website for tips for trail building :-)