I definitely recommend that you do NOT do 5 away or home radiology rotations. First of all, many program directors straight up dislike seeing this, because it's one of your last times to interact with clinicians from other specialties.
Also, your letters also should be from a wide variety of clinicians. Many program websites state their preference is to have max 1 or 2 radiology letters, so doing 5 rotations is a bit extreme.
A happy balance would be to do one IR rotation (if you're interested in it) and whichever other rads subspecialty you like. Some might also recommend doing a general rotation so that you meet the most people possible. Note, aways in radiology only work in your favor if you're likable.
In addition, as a D.O, you need to apply broader than everyone else even if your stats are killer. Seriously, don't underestimate this. There are various threads on here and auntminnie that talk about D.O.-friendly programs. Doing an away at one of these institutions would be the best use of your time if you decide to do one.