I have a 52 inch Wright Stander. I would like to upgrade my 16HP recoil Briggs vanguard with 1 inch shaft and alternator, 1000 hours to something in the 20-25 HP range. Here are my possible swaps. 18HP Briggs recoil will swap with no modifications at all, my last resort if nothing else will work as Iwould like more power, $750. 20HP Briggs 1 inch shaft electric start, Can I convert this to recoil and if so will it have an alternator and will the wiring work,$900. Kohler 20HP 1 inch shaft electric has 3amp or 15 amp alternator, can I convert this to recoil, $850. Kawaski 19 HP 1 inch shaft electric, can I convert this to recoil and will it have an alternator, $995. These next 2 engines have 1 1/8 inch shaft so I don't know if they will work with the pulley. My wright stander was and is available with the 23 Kaw and 22 Kohler but in the parts manual it only lists the pulley with a 1 inch shaft, will the 1 1/8 work or are these engines avilable with 1 inch shafts. Kohler 22 ES 3 or 15 amp alternator, 1 1/8 shaft, $1025. Kaw 23 1 1/8 shaft ES, does this have an alternator, $1,300. If anyone can answer any of my many questions it would be appreciated.