The '17 genre Enfields are big rugged nickel steel receiver actions. As noted, rather uniquely adapted among its milsurp peer to the big long magnum cartridges such as H&H, Weathrby Mag etc genre. Such 'long Tom' rounds are its forte. Conversely; big and heavy rifles! For today trend "lightweight sporters"... Not! As above noted, many converted to sporting use. Work done and sufficient number that with patience and diligence, to find about any configuration as desired. Moreover, typically inexpensive in relative sense. As for chamberings, I haven't seen very many such conversions 'other than' occasionally the referenced long mag chamberings. While I'd see no reason not to convert to 6.5 Swede, I'd personally seek a lighter rifle and likely a Husqvarna Model 1600 CRF action. Trim, lightweight and relatively 'modern'. In the milsurps the heralded Swedeish Model 1896 (aka '96) or later Model 38 rifles.
I've experienced the "I wanna just because I wanna..." syndrome and if so; go for it! But one of the pethora of already sporterized '17 Enfields to save a lot of effort/$$$.
Last suggestion, check out the Remington Model 30 rifles, the '17 commercial variant. Already sporter config by the factory and a variety of chamberings to 'live with' or further rechambering where bore diameter compatible. Early Model 30 rifles with interesting schnabel stocks but forwarned as NOT ergonomic from felt recoil perspective. Later 30 models as "NRA Stock pattern" better. Early 30 model, cock on closing as the '17. Later model, cock on opening.
Personal taste, I prefer earlier "closing" config.
In our present era of rampant inflation, nothing 'cheap'! Such as the '17 Enfield Bubba sporter genre, yet tending toward bargain and nowadays, moved to yet 'under radar' value.
Just my take
Best!
John