It's been a long time since I got into the sport. I've done a lot of trial and error fittings for myself when I was cash sensitive and ultimately can get myself sorted pretty easily.

That said, I was tasked with getting a good friend of mine with no cycling background a solid bike within a very reasonable budget. I sent her to a respectable bike shop and determined she would be between a 52 and 54 wsd,
Trek. I ended up scoring her a Domane 5.2 wsd in great shape for 900.00

My question is would you suggest I do an eyeball fitting for saddle height and fore/aft and play with through stems stack height and orientation than send her off for a few rides to get a baseline before going to get a more mid level pro fit and replace any components necessary to achieve something more optimal, or send her straight to the shop to get it dialed from then start? She can afford either option but never considered this position from a day one type of rider starting point.

Thank you in advance for your suggestions!