I’m sure you saw the specs but they say it’ll hold 125’ of 5/8" so might be close. Depending how far most houses in your area are from the road you might be able to get by with 100’ of hose most of the time.
You wouldn’t be adding that much more weight or size if you went with the 1526-17-18. It would only be 6" wider and probably just a few more pounds. It says it will hold 200’ of 5/8". I went one size larger than what I currently thought I would need for both my supply and high pressure in case I ever need to add more length or a bigger diameter. I had a hard time deciding but I figured a little bigger reel isn’t going to hurt anything. I realize you are trying to watch the weight and size though.
I have 4-50’ sections on one. Two sections are cheaper 5/8 hose, one section is 3/4 and one is 5/8 flexilla. So, it should. I hardly use more than 100’. The mismatching hose is due to me swapping from all 3/4" stuff. Trying the flexilla myself. The reel is a 1520 but is for holding hose only. No inner parts to flow thru.