Has anyone purchased and installed a engine repower conversion with a Briggs and Stratton 23 hp Vanguard series from small engine warehouse? I am thinking about buying this kit from them. It is approximately 1800 dollars with freight included. Looking at new tractors for sale I am not really impressed with flimsy construction I see. I need my equipment to last many more years and I thought this could be a worthwhile option. Has it held up well for you? Anything you would do to make it better if you had to do it again? http://www.smallenginewarehouse.com/386447-WH520H-R1.html?sc=17&category=1709896 Please advise, mike