Welcome to HDTimeline, sorry the circumstances are so tenuous right now. You will find a lot of posters who will try to help you soon. We will need a little background as to the circumstances prior to you having problems. Did it occur after you were on a long trip after the conversion, or had some recent routine service done? Anything you can add will help.
All I can say is WOW, if HD dealer had to replace trashed lifter and OIL PUMP, they are not troubleshooting, just fixing what is "broken". Maybe they did not clean out all the debris left in the oil galleries, lurking in the nooks and crannys under the rocker covers and crankcase, so there may be another problem waiting to occur or reoccur if they did not find the root cause.
I would seriously look into inspecting the "bowels of the engine", pull the rocker covers, disect your oil filter and look at the crankcase drainings immediately. You know something is amiss, do not ride the bike anymore until you find it. Just throwing money at it by cleaning up evidence of something wrong, or just the failed parts as a consequence of some unknown root cause, is not troubleshooting in my book.