Geyperman is right, you'd be much better off starting with a MBW 5513 -a better base to work from. See if Eurotimez can swap the dial out with a 5517 dial, he sells a 5517 dial for the MBW's separately.
You would need to drill out the lug holes to 2mm and insert a steel rod for fixed bars and solder them in place to have fixed strap bars. For a quick and dirty method, could just solder springbars in place. Swap with a CWP 60 min insert, use MkII Watches MOD hands and call it a day. BTW, I have a set of vintage lume MkII hands for sale . Note that some 5517's were still marked 5513 on the cases so its not such a big deal with the stampings.
Good luck on your project.