is there any particular reason why you want a longer fl? My recommendation is get an autoguider package that you can use with your 80mm now and get some amazing, deep wide field images! There are some spectacular objects that you just won't be able to fit in the fov at 1000mm . If you then decide to upgrade the ota you can use that system to guide as well. I had the exact same idea, I got a 80mm scope with the intention that it would eventually become my guide scope for my 10" newt. But I used an Orion autoguider package and never looked back. I couldn't justify the additional weight of the 80mm and it sat in my study. Be aware, if you get a newt you will want a coma corrector, trust me.
I haven't been bothered to sell any of my gear, I still have a 10" newt, autoguider , guide scope , baader mpcc , autofocus system. Let me know if you want any of it.
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