Brent
like this small window? - no doubt made by Dynacorn - even tougher than nipping the top off an original cab IMO - remember that there's an 'inner' body as well as that outer shell, and that needs the larger opening too, and those 2 panels are pinch welded - on top of the 500$ patch cost, you'd be looking at at least a thou to install it
you'd be best off to find a decent big window cab Highschooler, and just switch cabs - even trade the small window for it, as many folks would rather have that! 90% of the TF cabs ya see are small window tho, so it won't be too easy to find a loose big window cab
Bill