Tig welder for a beginner

About 20 years ago I got tired of getting things welded and I bought a Mig. Certainly average work at best but I don't do it consistently enough.... I am wanting to make some changes on my Pontoon and need to fuse aluminum together. Never so much as picked up a Tig however I am now considering purchasing one. It's an art and a craft so I respect you guys that do it in Trade or even a lifer (lol) so be kind in your words haha....

Looking for advice on a box, novice advise, or anything that will help me make the decision. I have just grown tired of asking people (much less finding someone who will actually do the work) and I have found it a fascinating process so it would engage me in trying to do well with it....


TIA,
JW