[TowerTalk] Yaesu G-1000DXA Rtor in LM-470? (what about a LM354E?)

[DAVE WRIGHT]

 Now you guys got me worried. 
About to buy/install G-2800DXA Yaesu into LM-354E (not the "HD.") You may recall my multiple T2X w/Pro-57b woes; I've decided 1st class this time w/the G2800DXA. Seeing your msg now I'm worrying the G2800 may not even fit in between the LM354's bars? Perhaps I should try the G1000 1st??? I can drill the adapter plate, that's no biggie. 
However I had a hell of a time getting the 1st Tailtwister T2X installed between the tower horizontal supports at the top of tower. Ended up "slightly" bending one of the very top cross "/\/\/\/" bars so I could get the T2X in (It fit adapter-plate holes.) It moves up/down anywhere in top section; typically placing it several cross bars down f/top to avoid the slightly bent section @ top. (15' mast)
Winds here never really big as we have a mild-salt-air environment. Largest wind ever recorded here @ a nearby airport (& my wx station) was a short gust of 95mph/sustained ~65ish. Once in a half-century storm. I'm not going to worry about wx here.
Q: Should I try G1000 1st before going to the 2800? Will fitment be critical between the two?
Thank you, Dave K6JOX