Chainsaw Repair

I posted a thread on the arborist forum (my name there is ILIKEHOMELITES, 2manyhobbies was taken) a couple weeks ago with a picture of the 0.030" cylinder for my Homelite C9.  It is kind of a mystery since the cylinder is exactly 0.030 oversize, and the piston is marked as such.  Well the cylinder is beyond hope, the scoring is through the re-chromed layer.  As I was looking on eBay I found a cylinder (already sold) for a 1020xp saw and noticed that the skirt of the cylinder is different than the C9.  It appears that the location of the intake ports is similar, but it has a complete diameter under it (see the pics.).   From a porting perspective how does this change things?  Is the design of the case different for the different designs?  I understand that the diameters of the cylinder are different, my question is about the design.  Why you would ask?  This may end in disaster, but I am thinking of sleeving the C9 cylinder like the XP cylinder and I wondered if it would be OK?

1020XP cylinder


C9 cylinder

I am really interested in it because it makes salvaging the cylinder with the sleeve method viable (only because I have the machinery to do it.)  Without having the complete band I would have to cut out all support around the intake fins, with the band I can cut ports near the end of the intake runner like the XP cylinder.  I would think that the XP cylinder would be coolest around that section of the cylinder since the cool intake gasses would be traveling through the ports, and it is supported about every 10º with a runner.

Did a little digging and it looks like there are similar models.  Ignitions and starters are different but carbs and top ends may mix and match. 
C-9, stroke 1.5625 in., bore 2.0625 in
xl-925, stroke 1.500 in, bore 2.0625 in.
C-51, stroke 1.5 in., bore    2.00 in.

Scott at Chainsawr might have a cylinder and piston set that would bolt right on. 
http://store.chainsawr.com/products/homelite-c-5-c-51-c-52-chainsaw-piston-and-cylinder-set
   

I'm afraid if you try and press a sleeve in over the open type transfers it will warp .Because of the fact you don't have a completely surrounded cylinder even with a heat type shrink fit the metal will not encompass the sleeve properly . One way to find out though .If it doesn't work you aren't out anything but your time because as it now it doesn't work .