Easy enough to rig any loader to fit - the ticklish part is the subframe and mounts are strong enough not to break or cause the tractor to split in two. My Zetor tractor with Zetor loader subframe is about 1" thick on both sides nose to tail.
from the clutch housing towards the rear, the frame just takes up the lateral forces, the transmission is only a foot wide but three foot high: with a loader you bend it laterally, especially with an MFWD. these 1"x4 or 5" axle bars dont take much horizontal bend, they are just spaced wide apart to take the force of the area right behind the clutch bellhousing, thats historically the place where any loader tractor can break.
On the front part, you need to bridge both attachment points to support the front axle console, it might break if you dont extend it beyond the first attachment points in front of the engine.
Furthermore, the fuel tank on the right side under the cab, as well as the old power assisted steering arm and cylinder system are a PITA when making a loader frame. But perhaps the OP's 7245 already has the fully hydrostatic steering (orbitrol system) which makes it a lot easier to route a frame.
I am transplanting my home made loader with hot rolled C channel frame, from my father/brothers 5245 to my own 5718, i thought i made it universal, but i run into a lot of smaller clearance issues... But i have a torch and a welder, thats all you need
the 5245 with loader, is replaced by a 5 ton payloader, so that puts things in perspective..
I will only use my loader to collect bales from fields, not for excavating anymore. So i can do with a cheaper 2wd tractor with a little calcium in the rears...