upgrde to maggie 3.6 or i.6 with better amplifier

My system now consists of maggie 1.5 speakers, mccormack dna-1 amp, anthem pre 1,Sony scd 777es,rega p25 turntable with lynn adict cartridge and audioquest cabling thruout. my question,would my upgrade path be better served by buying the 3.6s and keeping current equipment or buying 1.6s and buying (for instance)a musical fidelity trivista 300 integrated amp. i love my maggies and dont think i can be disuaded from them however am open to your suggestions.The dna-1 drives the 1.5s well enuff(for my tastes and listening habits), however i wonder if they will drive the 3.6s sufficiently. As badly as i want the 3.6s i am not sure that is the way to go given current equipment .Or maybe i would be better served by buying seperate preamp with better phono stage. help!!!!!!!! my budget is about $5,000 so i realize my choices are limited.BTW i have large rm appx20'x 25'with a 6x8' closet taking up one corner. my listening consists of about 75% vinyl and 25 % cd & sacd. my musical preferences are classic jazz( the usuals) classic rock and female vocals.Once again let me thank all of u goners for this site and all of your precious advice i am again greatly indebted. Frogsglassass