Hi and welcome to the site. Your approach sounds fine. The whole issue of “vacations” from rapamycin (periods of multiple weeks off from your regular schedule) is still debated. I don’t think most doctors recommend this right now (of those that prescribe), so its an option you can take if you want to be extra cautious. I’m not sure what percent of our forum members actually do this… I think its a minority now.
As far as pre testing (before you start rapamycin) and post testing (after you’ve been on it for 3 to 6 months), I recomend you check out these threads for some ideas.
Here is a really good example of pre and post testing to see the benefits of rapamycin, from a blood test perspective : My Lab and Fitness Results After 3 months of Rapamycin Use
and here: 35 Year Old Active Dude wants to give rapamycin a shot, what metrics to track?
See here too: Pre Rapamycin Lab Work Recommended?