It's your game. Personally I think this cabinet is awesome. Part of the reason I hung onto to Jungle for so long. Just a big component in it's overall charm.

IPDB states this game had some production games in woodrail cabinets. It makes sense as it seems to be the first after Serenade, their last full production woodrail. I always thought it was neat that the styling of the 60s cabs still retained the woodrail arch as a carryover. Finding an example of an original woodrail Darts to mimic the paint scheme would make it a more interesting project.

I just had an aha moment with the help of O-din. The cabinet of the sixties games have a slightly wider playfield than standard I believe. As JR already mentioned the glass is larger. Swapping into a standard cabinet may not be as easy as transferring everything over. I suspect playfield won't drop in without some serious modification.

Just for fun I measured the width of the playfield in my '57 Jig Saw. It's 20 3/16" wide x 42" long. A marginal difference. It may work, it may not.