A sirio 2008, sirio 2016, maco v58, workman w58 are all 5/8 wave ground planes that will give you an improvement over your choices mentioned. There are more but these should get you ballpark to the price range you're looking at.
The gainmaster is solid too but with that one you'll have some power restrictions. If i recall it handles about 500 watts.
I had an A99 years ago, I was happy with it. But if you go home brew the co phased ground plan in my opinion talks and receives circles around my old A99, I don't know about the other antennas mentioned ive never owned one of those. You can get plans from Mower Junkie on U Tube, and go as cheap or expensive as you want. But if you go SS 102 whips for antenna and ground radials it's not cheap, but i promise you won't regret it.
I agree. The Sirio Gainmaster 5/8 is a great antenna and this is what I use when running my 200 watt RCI 99N2 and my 60/70 watt radios. Excelent antenna, and I can't say enough good things about it.
